---My family usually goes skating for vacation. I like skating, but I want to try something different this year.
----_______.
| A．Let’s go! | B．Cheer up! | C．Like what? | D．Take care! |
“This is ______ most useful reference book,” a teacher from ______ European country told us in class.
| A．the; a | B．a; 不填 | C．不填; 不填 | D．a; a |
--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 |