Question

Select a suitable option to fill in the blank:

A: Is Jim watching TV?
B: Yes, he _______________ TV all evening.

• A. haven't watched
  
• B. has been watching
• C. didn't watch
  
• D. is watching
  

Answer 1

The correct option is B has been watching

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 watching TV started in the past and is continuing in the present. The present perfect continuous is formed using the construction has/have been + the present participle (root + -ing). Hence, Option B is correct.

The rest of the options either indicate that the action has already happened (Options A and C) or it has just started and is continuing in the present (Option D).

Hence these options are incorrect.