13（ ）I repeat the question?
A.Shall B.Will C.Do you want that D. Do
14.Professor Li,many students want to see you. （ ）they wait here or outside!
A.Do B.Will C.Shall D.Are
15.You（ ）read that book if you don‘t want to.
A.haven't B.can't C.mustn't D.needn't
