Meaning: "effective" means working well or producing the result.

Wrong options:

• effectiv: It leaves out the "e". The right spelling is "effective". Every letter must be correct to get the mark.
• efficient: This is a different word. It sounds different and changes the meaning.

Correct answer: presented

Explanation: You hear "study presented at a meeting". The sentence needs a past action word, so add ed at the end.

Meaning: "presented" means shown or told to people at the meeting.

Wrong options:

• presnted: It leaves out the "e". Check the letters: "presented". A small spelling mistake loses the mark.
• present: "present" is missing the ending. The speaker says "presented", with "ed" at the end.

Correct answer: computing

Explanation: Listen for "Association for computing Machinery". It needs the field word for computers, not the machine.

Meaning: "computing" means work with computers or computer science.

Wrong options:

• comuting: It leaves out the "p". Write "computing". Only the exact spelling gets the mark.
• computer: "computer" is a close word, but it ends in "er". The speaker says "computing", which ends in "ing".

Correct answer: actively

Explanation: On the recording you hear "while you're not actively using them". You need a word that tells how, so it ends in ly.

Meaning: "actively" means doing something with attention or use.

Wrong options:

• activly: It leaves out the "e". Check the letters: "actively". A small spelling mistake loses the mark.
• activity: "activity" is a close word, but it ends in "ity". The speaker says "actively", which ends in "ely".

Correct answer: require

Explanation: Listen again to "same app require different energy". The sentence talks about more than one, so no s at the end.

Meaning: "require" means need or need to have.

Wrong options:

• requir: It leaves out the "e". The right spelling is "require". Every letter must be correct to get the mark.
• requires: "requires" has an extra "s" at the end. The speaker says "require", with no "s".