Passage Reference: The first bent-wire paper clip was patented by Samuel B Fay in 1867. This clip was originally intended primarily for attaching tickets to fabric, although the patent recognised that it could be used to attach papers together.

Common Mistake: Students often write fabric or tickets only. That is incomplete and changes the meaning. This is a partial truth trap.

Paraphrasing: Passage: 'attaching tickets to fabric' = Summary: 'fastening [GAP]'

Tips: When the note sounds very specific, copy the full phrase from the passage, not part of it.

Key Vocabulary:

• attach = fix to
• fabric = cloth

Question Focus: Synonym match - advertised under many names

Correct Answer: brand names

Passage Reference: However, beginning in 1899 and for decades thereafter, the Fay design was widely advertised under many brand names for use in fastening papers.

Why this is correct: After 1899, the passage says the Fay design was advertised under many brand names. The note paraphrases this as "used different ___ to market".

Common Mistake: Students may write advertisements or brands. These are not the exact passage words. This is a synonym trap.

Paraphrasing: Passage: 'advertised under many brand names' = Summary: 'used different [GAP] to market'

Tips: If the passage already gives a plural noun, copy it exactly.

Key Vocabulary:

• advertised = promoted
• brand = product name

Question Focus: Identifying the best-selling product name

Correct Answer: the Gem

Passage Reference: The Gem paper clip, which was never patented, but which eventually became by far the best-selling paper clip in the US, has been advertised since 1894 and may have been introduced in 1892.

Why this is correct: The passage clearly states that The Gem became by far the best-selling paper clip in the US. This matches "the number one paper clip in America".

Common Mistake: Some students write paper clip or Gem paper clip. That adds extra words not needed. This is a word limit trap.

Paraphrasing: Passage: 'the best-selling paper clip in the US' = Summary: 'number one paper clip in America'

Tips: Product names are often the answer. Capital letters help you notice them.

Key Vocabulary:

• best-selling = most popular
• introduced = first made

Question Focus: Matching a date to recognition of success

Correct Answer: 1900

Passage Reference: A 1900 trade publication stated that "The wire clip for holding office papers together has entirely superseded the use of the pin in all up-to-date offices.

Why this is correct: The passage mentions a trade publication in 1900 saying paper clips had replaced pins. This shows recognition of their success.

Common Mistake: Students sometimes write late 1890s. That is a time period, not the magazine date. This is a time/tense trap.

Paraphrasing: Passage: 'A 1900 trade publication stated' = Summary: 'recognise the success ... around [GAP]'

Tips: When a specific year is given, use it instead of a general time phrase.

Key Vocabulary:

• trade publication = industry magazine
• superseded = replaced

Question Focus: Cause of delayed production

Correct Answer: right wire

Passage Reference: According to Petroski, "Steel wire was still new in the second half of the nineteenth century. The widespread manufacture and use of the paper clip had to await not only the availability of the right wire but also the existence of machinery capable of tirelessly and reliably bending it in a flash into things that could be bought for pennies a box.

Why this is correct: Petroski explains that production had to wait for the right wire to be available. The note shortens this idea into one clear cause.

Common Mistake: Students may write machinery. That is also mentioned, but the note focuses on one factor. This is a partial truth trap.

Paraphrasing: Passage: 'availability of the right wire' = Summary: 'held back until the [GAP] became available'

Tips: If the question limits words, choose the key phrase, not the whole explanation.

Key Vocabulary:

• availability = being obtainable
• manufacture = production

Question Focus: Exact wording from an advertisement

Correct Answer: cheaper than

Passage Reference: In 1904, Clinch Clips were advertised as "Cheaper than Pins."

Why this is correct: The passage quotes the advertisement saying Cheaper than Pins. The note keeps the comparison but removes the noun.

Common Mistake: Students sometimes write cheap or cheaper only. That loses the comparison. This is a partial truth trap.

Paraphrasing: Passage: 'Cheaper than Pins' = Summary: 'being [GAP] alternatives'

Tips: Quoted phrases in the passage are often copied directly.

Key Vocabulary:

• cheaper = costs less
• alternative = another choice

Question Focus: Reason competitors needed new designs

Correct Answer: patents

Passage Reference: Many designs were initially protected by patents. As a result, other manufacturers had to come up with different designs.

Why this is correct: Because designs were protected by patents, other companies had to invent new ones. This directly explains the note sentence.

Common Mistake: Students may write designs. That repeats the idea but misses the cause. This is a causation trap.

Paraphrasing: Passage: 'protected by patents' = Summary: 'The [GAP] on paper clip designs'

Tips: Look for cause words like "as a result" to guide your answer.

Key Vocabulary:

• patent = legal protection
• competitor = rival company

Question Focus: Adverb describing performance

Correct Answer: securely

Passage Reference: Holds papers securely 5. Is thinner and takes less space in files 6. Is easily inserted 7. Is light weight and requires less postage 8.

Why this is correct: One selling point listed is that a clip holds papers securely. The note paraphrases this as keeping pages together more securely.

Common Mistake: Students may write secure. That is the wrong word form. This is a grammar trap.

Paraphrasing: Passage: 'holds papers securely' = Summary: 'keep a lot of pages together more [GAP]'

Tips: Check word form carefully. Verb plus adverb is very common.

Key Vocabulary:

• securely = safely
• mutilate = damage

General Tips:

• FIB summaries follow passage order. Use the answer to one gap to help you find the next.
• Always copy the exact word or phrase from the passage. Synonyms are marked wrong.
• Check the grammar around the gap. Articles and comparatives give strong clues.
• Watch the word limit carefully. Extra words automatically lose marks.