It is such that you must on it.
A. hard work; work hard B. a hard work; hard work
C. work hardly; work hard D. hard work; work hardly
Middle school students _________ smoke because it is bad for their health.
A. needn’t B. couldn’t
C. shouldn’t D. may not
The old book there ______ some strange pictures in it. Nobody can understand them.
A. are B. is C. has D. have
--- Did you go to Jack’s party last night? ---- No, I ______.
A. didn’t invite B. haven’t invited
C. am not invited D. wasn’t invited
Have you seen a tall boy ______ a basketball ______into the building?
A. has; run B. have; running
C. with ; run D. with; running
Your friend John has a lovely pet dog called” Bob”,_______?
A. does he B. has he
C. doesn’t he D. hasn’t he
