Going “green” ()have to be a challenge.
A、 don’t
B、 doesn’t
C、 is
第1题:
A、wouldn’t
B、won't
C、will
D、do
第2题:
A.is not
B.don't
C.doesn't
第3题:
22. Ben,_______ climb the tree. It is very dangerous.
A.doesn't
B.not
C.don't
D.isn't
第4题:
Must I stay at the office this afternoon? ---No, you ______.
A、don’t
B、needn’t
C、don’t need
D、can’t
第5题:
He seldom does his homework at school on weekdays,( )he?
A. doesn't
B. isn't
C. does
D. is