GREAT THINKERS C1 UNIT 1 PREFIXES

Which is the correct prefix for behave?

• mis-

• un-

• re-

• sub-

Answer explanation

The correct prefix for behave is 'mis-' which changes the meaning to 'misbehave'. The other prefixes do not form the correct word with behave.

Which is the correct prefix for rated?

• anti-

• re-

• sub-

• under-

Answer explanation

The correct prefix for 'rated' is 're-' because it indicates repetition or back to a previous state, as in 're-rate'.

Which is the correct prefix for able?

• un-

• dis-

• anti-

• sub-

Answer explanation

The correct prefix for 'able' is 'un-' which changes the meaning to 'not able'.

Which is the correct prefix for legal?

• sub-

• dis-

• il-

• anti-

Answer explanation

The correct prefix for legal is 'il-' which means 'not' or 'opposite of'. Therefore, 'il-' is the correct choice as it changes the meaning of the word to 'illegal'.

Which is the correct prefix for sonic?

• super-

• sub-

• re-

• anti-

Answer explanation

The correct prefix for sonic is 'super-' because it means above, beyond, or transcending, which fits the context of sonic being related to sound or speed.

Which is the correct prefix for agree?

• un-

• dis-

• re-

• sub-

Answer explanation

The correct prefix for agree is 're-', which means again or back. Therefore, the correct prefix for agree is 're-'.

Which is the correct prefix for credible?

• un-

• im-

• in-

• dis-

Answer explanation

The correct prefix for 'credible' is 'in-' because it changes the meaning to 'believable' or 'trustworthy'.

Which is the correct prefix for paid?

• over-

• re-

• anti-

• sub-

Answer explanation

The correct prefix for 'paid' is 're-', which means 'again' or 'back'. Therefore, the correct choice is 're-'. None of the other prefixes are suitable for the word 'paid'.

Which is the correct prefix for social?

• anti-

• re-

• sub-

• over-

Answer explanation

The correct prefix for social is 'sub-', which means under or below. It is the most appropriate choice to form the word 'subsocial'.

Which is the correct prefix for reliable?

• in-

• un-

• sub-

• anti-

Answer explanation

The correct prefix for reliable is 'un-' because it changes the meaning to 'not reliable.'