______ in society that it has even influenced our language.
| A．So a important part is pop music |
| B．Such an important part is pop music |
| C．Such an important part pop music is |
| D．So important a part pop music is |
The Science Museum,_____we visited during a recent trip to Britain, is one of London’s touristattractions.
| A．which | B．what | C．that | D．where |
The expert offered us another piece of advice,_____of great help to our program.
| A．I think it is |
| B．I think which is |
| C．which I think it is |
| D．which I think is |
— Where is John? — He _____ in the library.
| A．should be | B．must be | C．can be | D．must have been |
. — Please don’t make a noise.
— _____. I’ll be as quiet as a mouse.
| A．Yes, I won’t | B．No, I won’t | C．No, I will | D．Yes, I will |
I didn’t see her in the meeting room this morning. She _____ at the meeting.
| A．mustn’t have spoken | B．shouldn’t have spoken |
| C．needn’t have spoken | D．couldn’t have spoken |