But for the metal cage to pull the miners to safety, the miners in Chile ____ in less than twenty-four hours.
| A．would not be rescued | B．would not have been rescued |
| C．would be rescued | D．would have been rescued |
The doctor advised Tom strongly that he should take a holiday, but ________ didn’t help.
| A．it | B．who | C．which | D．he |
Our success _____whether everyone works hard or not.
| A．lies down | B．leads to | C．depends on | D．results in |
We’d better hurry. Our teacher ________ us.
| A．wait for | B．must wait for | C．must be waiting for | D．has waited for |
The teacher as well as the students _______planting trees.
| A．are | B．is | C．has | D．have |
_______ is known to all, smoking is harm our health.
| A．As, for | B．As, to | C．It, for | D．It, to |