My brother is studying in ______ university in America; he wants to be ______ astronaut in the future.
| A．a; a | B．a; an | C．an; a | D．an; an |
—Is Richard still living here?
—No,he to Paris already.
| A．had moved | B．moved |
| C．will move | D．has moved |
There are lots of things I need to prepare before the trip.
| A．who | B．that | C．whom | D．whose |
The children decide their school yard this Friday afternoon.
| A．clean | B．to clean |
| C．cleaning | D．cleaned |
In China and some other countries,it is impolite to speak loudly you are having a meal.
| A．before | B．while | C．after | D．because |
—Must I hand in my homework now,Mr.Smith?
—No,you .
| A．can’t | B．shouldn’t | C．wouldn’t | D．needn’t |