Though the professor tried his best to explain the difficult question, the students still looked _____.
| A．confusing | B．being confused |
| C．to confuse | D．confused |
—How long have you been studying in No. 8 Middle School?
—More than two years.
—So it will be less than one year you graduate from it.
| A．when | B．before | C．after | D．since |
— the team finished most of their research work?
—Yes, but the rest rather difficult.
| A．Has, are | B．Has, is | C．Have, are | D．Have, is |
Mum, please let us, Lily and me, go to visit the new provincial museum tomorrow, ?
| A．can you | B．will you | C．shall we | D．may we |
—I regret such a silly mistake in the English exam.
— you keep on trying, I don’t really mind whether you can come out top in your class.
| A．making; So long as | B．to have made; As soon as |
| C．to make; Once | D．having made; The moment |
—I don’t suppose they could have finished their experiment, they?
— , they are still doing it in the lab.
| A．could; Yes | B．didn’t; No | C．have; No | D．couldn’t; Yes |