( )1 John_ come to see us tonight, but he isnt very sure yet. A. may B. can C. has to D. Must2 They _ do well in the exam. A. can be able to B. be able to C. can able to D. are able to3 May I take this book out? No, you_. A. cant B. may not C. neednt D. arent 4 You_ go and see a doctor at once because youre got a fever. A. can B. must C. dare D. would 5 Can you speak Japanese? No, I_. A. mustnt