—Look! The telephone is broken. Someone damaged it ________ purpose.
—That may be right. But perhaps it was broken ________ accident.
| A．on; by | B．by; by |
| C．on; on | D．by; on |
Thank you for giving me a hand.I___in the experiment without your valuable help
| A．have failed |
| B．will fail |
| C．would have failed |
| D．must have failed |
___the heavy rain,we___the town
| A．But for;should have reached |
| B．Because of;would have reached |
| C．During the period of;would reach |
| D．In spite of;should have reached |
He was very busy yesterday;otherwise he___to the meeting
| A．would come |
| B．came |
| C．would have come |
| D．had come |
—The weather has been very hot and dry.
—Yes.If it had rained even a drop,things would be much better now!And my vegetables___
| A．wouldn’t die |
| B．didn’t die |
| C．hadn’t died |
| D．wouldn’t have died |
___for the free tickets,I would not have gone to the movies so often
| A．If it is not |
| B．Were it not |
| C．Had it not been |
| D．If they were not |