问题

It is hard to say what kind of person he is.Sometimes he is very friendly; at other times he ___ be very cold.

A:can
B:must
C:will
D:shall

正确答案是：

同类题型

If nobody ____ the traffic rule, the Chinese style ofcrossing the road ____.

Ms Wang is an excellent teacher.________ in our class loves her.

I can’t quite remember ________ I was taken toBeijing.

Who lost the key — Peter _____, I think.

Let’s ________ this weekend.— That’s a good idea.