—I regret to say that I _______ have shouted at you the other day.
—Forget it. I was a bit out of control myself.
| A．shouldn’t |
| B．mustn’t |
| C．couldn’t |
| D．mightn’t |
The US Space Agency sent up a space probe to hit the moon to see ______.
| A．whether there was water on it | B．whether was there water on it |
| C．whether on it was there water | D．whether was water on it |
You can never imagine what great trouble I have had ______the patient who receive a serious wound.
| A．treat | B．to treat | C．treating | D．treated |
______ of the land in Jia Xing No. 1 Middle School _______ covered with trees and grass.
| A．Two third, are | B．Two thirds, are | C．Two third, is | D．Two thirds, is |
As is known to all language learners, the newly learnt words will soon be forgotten unless______ used in everyday communication.
| A．gradually | B．loosely | C．exactly | D．frequently |
The last thirty years _________ the quick development in almost every field in China.
| A．have searched | B．have released | C．have seen | D．have determined |