.I just wonder _____ that makes him so excited.
| A.why it is | B.what it is | C.why is it | D.what is it |
He has given me so much help that I really wanted to do something for him ________.
| A.in return | B.by turns | C.in turn | D.in case |
Mr. Li is absent today. What do you consider ________ to him?
| A.happens | B.is happened | C.happening | D.has happened |
The reason ________ he refused to attend the meeting was that they didn’t give him an invitation earlier.
| A.how | B.which | C.why | D.because |
Our English teacher requested that the homework ________ tomorrow morning.
| A.would be handed in | B.be handed in |
| C.hand in | D.must be handed in |
Smoking, which may be ________ fun for some people, is ________ cause of discomfort for the people around him.
| A./; a | B.a; a | C.a; / | D.a; the |