All of us must do_______ to help protect the environment，or we will have more hazy weather雾霾天气.
#74653
A
something useful
B
anything useful
C
useful something
D
useful nothing
推荐题目
It __be the vocabulary that caused you the problem in the exercise because you know a lot of words.
#62775
A
may
B
couldn’t
C
should
D
needn’t
—It’s hard to believe that Jack ________ have fought with the policeman.—Yes.If one ________ ask for trouble, it can't be helped.
#62730
A
would; will
B
must; may
C
should; must
D
need; dare
— I know by what time you want the project to be done?—By the day after tomorrow. you finish it on time?
#74189
A
May; Can
B
Must; Need
C
Could; Must
D
Need; Would