—John failed in the English test this time.
— He has been studying hard all the time.
| A．Of course. | B．Sure. |
| C．What a surprise! | D．Is there something wrong? |
“Aha, you’re a chain smoker！” “Only at home. Nobody _______ that but you.”
| A．discovered | B．had discovered |
| C．discovers | D．is discovering |
“What’s your opinion on the matter, please？” “Oh, sorry, I _______.”
| A．wasn’t to listen | B．haven’t listened |
| C．wasn’t listening | D．hadn’t listene |
“I took part in the TOEFL. It was really hard.” “Did you ______ a lot？”
| A．Have you studied | B．Did you study |
| C．Had you studied | D．Do you study |
You ______ television. Why not do something more active？
| A．always watch | B．are always watching |
| C．have always watched | D．have always been watching |
“I thought you might have got drunk.” “Yes, I ______.”
| A．almost have | B．almost had |
| C．almost did | D．might have |