1. Don’t forget ______ the letter.
A.to send
B.send
C.sending
D.being sent
A.to send
B.send
C.sending
D.being sent
答案
A
2. The chair looks very old,but in fact it is very comfortable to ______.
A.sit
B.sit on
C.be sat
D.be sat on
A.sit
B.sit on
C.be sat
D.be sat on
答案
B
3. Is ______ necessary to return the book tomorrow?
A.this
B.that
C.it
D.which
A.this
B.that
C.it
D.which
答案
C
4. I’m afraid they would not allow him ______ here.
A.to smoke
B.smoking
C.smokes
D.smoke
A.to smoke
B.smoking
C.smokes
D.smoke
答案
A
5. Mother told me ______ the water before I drank it.
A.boiling
B.boiled
C.boil
D.to boil
A.boiling
B.boiled
C.boil
D.to boil
答案
D
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