问题

have to hand in our research reportsthis afternoon, Professor Smith— Yes, you _______ . I will be waiting to check themall the afternoon.

A:should
B:may
C:can
D:must

正确答案是：

同类题型

Her son _______ Coke, but now he ________ milk.

Jack is late again. It is __________ of him to keep others waiting.[ ]

__________ that he managed to get the information? -Oh,a friend of his helped him.[ ]

May I speak to the patient now?—No, you _____. He is too weak now.

all know, Jack isexperienced _____ the problem of this kind.