The boys are playing now. They ... for three hours. They must be getting tired. a) have...

Question

The boys are playing now. They ... for three hours. They must be getting tired. a) have playingb) have playedc) are playingd) have been playing​

Answer 1

Ответ:

The boys are playing now. They ... for three hours. They must be getting tired.

d) have been playing​

Объяснение: