问题

enly everyone stopped t_____. But, for a while, I didn’t knowwhat it was.
A:has happened
B:is happening
C:happened
D:had happened
B:is happening
C:happened
D:had happened
正确答案是:
同类题型
The doctor will be free ________.
It wasn’t _______ he took off her mask _______ I recognized he should be a famous film star.
your strength, you have got to know who you are and listen to yourself before doing anything else.
We’ll fly to the south to see you immediately the tickets become_____.[ ]