He came back on ___ and left on _____.
| A．a Wednesday, the Saturday | B．the Wednesday, a Saturday |
| C．The Wednesday, the Saturday | D．a Wednesday, a Saturday |
We have to hurry, __________，we will miss the last train.
| A．eventually |
| B．otherwise |
| C．however |
| D．therefore |
Affected by the earthquake happening in March,2010，seven springs in Peru __________
| A．dried up |
| B．dried out |
| C．dried off |
| D．dried away |
Parents should encourage their children to __________ in all kinds of activities to train their ability of teamwork.
| A．participate |
| B．donate |
| C．devote |
| D．witness |
At last9 nothing but some trees remains，with some branches __________ the wall.
| A．stick out of |
| B．stuck out of |
| C．sticking out of |
| D．to stick out of |
“I __________ to meet you at the office，but I didn't see you，” the student said to the teacher.
| A．did come |
| B．did came |
| C．has come |
| D．had come |