How ________ they learn anything when they spend all their spare time watching television?
| A．must | B．should | C．may | D．Can |
He saw her coming, and advised me to hide behind the door, _________ advice I took at once.
| A．whose | B．what | C．that | D．which |
Don’t you think it essential that every resident of Guangzhou spare no effort to make contributions to the 16th Asia Games?
| A．should | B．will | C．shall | D．would |
Misunderstandings from lack of social communication, unless properly，may lead to serious problems．
| A．arisen；handling | B．arising；handled |
| C．rising；handled | D．risen；handling |
___________ I am willing to go, I would like it better if you went.
| A．How | B．Where | C．While | D．If |
He removed the tree ____________ it was the best in the ground.
| A．when | B．if | C．because | D．as |