Question

Fill in the blank using an appropriate form of the verb:

A: Are you waiting for me?
B: Yes, I ______________ (wait) for the last half hour.

• A. have been waiting
• B. am waiting
• C. was waiting
• D. will wait

Answer 1

The correct option is A have been waiting

The present perfect continuous tense (also known as the present perfect progressive tense) shows that something started in the past and is continuing at the present time. Here the action of waiting is continuing to the present. The present perfect continuous is formed using the construction has/have been + the present participle (root + -ing). Hence, Option A is correct.

The rest of the options either indicate that the action has already happened (Option C) or continuing in the present (Option B), or will happen in near future (Option D), hence they're incorrect.