. We should take part in such activities in future _____ we did yesterday.
| A．which | B．as | C．that | D．than |
—This returned scholar has become one of the top experts in this field.
—Yes, I know him very well. He ______ for ten years at an institute in the USA.
A. has worked B. had worked C. worked D. has been working
“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 |
How can you possibly miss the news？ It _______ on TV all day long.
| A．has been | B．had been | C．was | D．will be |