The scientists recommend that studies ________ to find out what side effects the medicine might cause.
| A．be done | B．should do |
| C．will be done | D．are done |
I didn’t feel like ________, so he suggested ________ an English song right away.
| A．reading; practising singing | B．reading; practising to sing |
| C．to read; practicing singing | D．to read; practicing to sing |
I think I must watch TV now, Dad. I _________ which team will win the game.
| A．don’t wait for know | B．can’t wait for knowing |
| C．don’t wait to know | D．can’t wait to know |
The school headmaster forbids ______ in the office.
| A．smoking | B．to smoke | C．us smoke | D．from smoking |
We were listening closely to the lecture yesterday evening when suddenly the light ________.
| A．had been gone out | B．go out | C．was gone out | D．went out |
________ the manager has arrived, we can begin our discussion right away.
| A．If | B．When | C．Now that | D．Even if |