初中英语语法专项习题11-情态动词
1( ) 1 John___ come to see us tonight, but he isn't very sure yet.
A. may B. canC. has to D. must
( ) 2 They ___ do well in the exam.
A. can be able to B. be able to
C. can able to D. are able to
( ) 3 -May I take this book out?
-No, you___.
A. can't B. may not C. needn't D. aren't