六年级情态动词练习题及答案 1 John_ come to see us tonight, but he isnt very sure yet. A. mayB. can C. has toD. must You_ go and see a doctor at once because youre got a fever. A. canB. mustC. mustnt -Can you speak Japanese? -No, I_. A. mustnt B. cantC. neednt He isnt at school. I think he _ be ill. A. canB. shallC. must _ I take this one? A. MayB. WillC. Are The children_ play football in the street. A.
