A. can B. need C. may D. will
A. need B. can C. may D. dare
A. can B. ought C. should D. need
A. will B. must C. can D. shall
A. will B. have better C. need D. had better
A. used to B. is used to C. uses D. used
A. can B. must C. should D. may
A. has not to B. don't have to C. haven't to D. doesn't have to
A. mustn't B. can't C. needn't D. may not