Multiple choice

The cost of living _____ (increase) even more by 2020.

  1. has increased

  2. will increase

  3. will have increased

  4. increases

  5. increased

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

This is the correct answer. The word 'by' shows that the sentence is in future perfect tense. So the verb must also be in the same tense. 'Will have increased' is the future perfect form of the verb 'increase'.