—____when has the country been open to international trade?
—1978,I suppose.
| A．Since | B．In |
| C．From | D．After |
All the employees of the company received a(n) _____________of $ 200 apart from their salary at the end of the year to celebrate our traditional Spring Festival.
| A．advantage | B．reward | C．bonus | D．fare |
The _________ look on his face suggested he didn’t know the fact.
| A．surprise | B．surprised | C．surprising | D．amazing |
The teacher ____________his students to leave the classroom as soon as possible .
| A．required | B．suggested | C．demanded | D．desired |
Most Americans would prefer to keep their problems _________ themselves and solve their problems __________ themselves.
| A．to ,by | B．by ,to | C．for,to | D．in,on |
— How about a film tonight?
— __________ I haven’t been to the cinema for a long time.
| A．Yes, thanks. | B．Why not? | C．No, go away. | D．It’s a pity. |