问题
ry I didn’t phone you, but I’ve been very busy ___ the past couple of weeks
A:mustn't
B:won't
C:needn't
D:couldn't
B:won't
C:needn't
D:couldn't
正确答案是：
同类题型
We should know that we can only reach the top if we are ready to _________ and learn from failure
Watching TV is ________ a kind of relaxation, and it also _______ our knowledge.
_____ in the elevator, please press the emergency button immediately.
Have you ever read Harry Potter—Of course.It’s a famous novel ________ by J．K.Rowling.