Suddenly the truck was out of control and________ a tree.
| A．broke into |
| B．crashed into |
| C．crawled into |
| D．burst into |
--I must apologize for ahead of time .
--That’s all right .
| A． letting you not know | B． not letting you know |
| C． letting you know not | D． letting not you know |
.People have planted a great many trees in order to _____ wind and sand in the desert.
| A．hold down | B．hold up | C．hold back | D．hold out |
You can take anything from the shelf and read, but please __________ the books when you have finished with them.
| A．put on | B．put down | C．put back | D．put off |
You should have informed me that the lecture was canceled. I ________ all the way here through the heavy rain.
| A．mustn’t have run | B．can’t have run | C．shouldn’t have run | D．needn’t have run |
_______ and I’ll make it ______.
| A．Have one more hour ; preparing | B．One more hour ;prepared |
| C．Given one more hour; preparing | D．If I have one more hour ; prepared |