问题
You _____ phone him if you want to, but you _____! He will surely phone you.
A:may; mustn’t
B:have to; needn’t
C:can; needn’t
D:can; doesn’t need
B:have to; needn’t
C:can; needn’t
D:can; doesn’t need
正确答案是：
同类题型
It was lack of effort , not of money , _______resulted in their failure. [ ]
Who did you ______ to pick up the foreigner at the airport.[ ]
单项选择（每题1分）Is this the reason _____ she explained in the report for her success in the job?
How long have you lived in Yangzhou— I was ten years old.
ou ______with the dictionary, don’t forget to put it back on my desk, will you