. The biggest problem for most plants, which ___ just get up and run away when threatened, is that animals like to eat them.
| A．shan’t | B．can’t | C．needn’t | D．mustn’t |
Have you bought the same book ________ I referred to yesterday?
| A．that | B．as | C．which | D．what |
_____ to drive after drinking, some drivers are still trying their luck, which is dangerous.
| A．Not reminded | B．Reminded not |
| C．Not having been reminded | D．Having reminded not |
— That must have been a long trip.
— Yeah, it _____ us a whole week to get there.
| A．takes | B．had taken | C．took | D．was taking |
“Drive-ins” have large parking lots _____ customers are served in their cars by waitress.
| A．who | B．when | C．which | D．where |
— Did you hear about Zhang Lili who saved the kids from being run over by a school bus?
— Yes. What do you think most people _____ if they were in a similar situation?
A. will do B will have done.
C. would do D. would have done