Meaning: "different" means not the same.

Wrong options:

• diffrent: It leaves out the "e". The right spelling is "different". Every letter must be correct to get the mark.

Correct answer: voltage

Explanation: You hear "creating voltage differences". Pick a word for an electrical thing between two points.

Meaning: "voltage" means an electrical difference between two points.

Wrong options:

• volatge: Two letters are in the wrong order. The right spelling is "voltage". Every letter must be correct to get the mark.

Correct answer: published

Explanation: Listen for "new research just published in". This already happened, so the word ends in ed.

Meaning: "published" means made public in a journal.

Wrong options:

• publised: It leaves out the "h". The right spelling is "published". Every letter must be correct to get the mark.
• publish: "publish" is missing the ending. The speaker says "published", with "ed" at the end.

Correct answer: reassemble

Explanation: On the recording you hear "can reassemble to effectively form". It follows 'can', so use the base action word.

Meaning: "reassemble" means come together again to form something.

Wrong options:

• reassmble: It leaves out the "e". The right spelling is "reassemble". Every letter must be correct to get the mark.
• assemble: 'Assemble' misses the 're' idea of doing it again.

Correct answer: confirmed

Explanation: Listen again to "needs to be confirmed in actual". This must be proved later, so the word ends in ed.

Meaning: "confirmed" means proved or checked as true.

Wrong options:

• confrimed: Two letters are in the wrong order. Write "confirmed". Only the exact spelling gets the mark.

Correct answer: sensitivity

Explanation: Here you hear "explain our temperature sensitivity". It means how easily you notice changes, so the word ends in ity.

Meaning: "sensitivity" means how easily you notice changes.

Wrong options:

• sensativity: It has "a" where the word has "i". The right spelling is "sensitivity". Every letter must be correct to get the mark.
• sensation: 'Sensation' means the feeling itself, not how easily you notice it.

Correct answer: pain

Explanation: The speaker says "involved in pain sensation". It comes before "sensation", so a short word for bad feeling fits.

Meaning: "pain" means a physical hurt or discomfort.

Wrong options:

• pane: It leaves out the "i" and it adds an extra "e". Write "pain". Only the exact spelling gets the mark.