问题
The children were warned of not being too______ about things they were not supposed to know
A:may have been
B:would have been
C:must have been
D:should have been
B:would have been
C:must have been
D:should have been
正确答案是：
同类题型
How are you –Fine, thank you.______
_____ you have the chance to go to the university in the future, you must take it.
In spring the trees begin to __________ .
It has been raining for three days.I hope________.[ ]
His resolution ________ planning.-Yes, he is going to make a weekly plan for his work.