Question

They _______ playing chess for 2 hrs.
a)are. b)was. c)have been​

Answer 1

Answer:

are is the correct answer.

Answer 2

Answer:

c) have been

Explanation:

"Has been" and "have been" are both in the present perfect tense. "Has been" is used in the third-person singular and "have been" is used for first- and second-person singular and all plural uses. The present perfect tense refers to an action that began at some time in the past and is still in progress.