问题

Mary has been abroad for 6 months. I have written to her but I haven’t had time.
A:must
B:could
C:should
D:might;
B:could
C:should
D:might;
正确答案是:
同类题型
She didn’t hear about the news Marytold her.
The look on his face showed that he had enough confidence in himself.
We are going on a trip to Shanghai next week.-_______.
Would you please buy me a bright paper package when you go shopping- _________.
I can something biting my feet in the water.— Can you It may be a fish.