—        did you stay in Hong Kong?   —  About 20 days.
#39409
A
How often
B
How soon
C
How long
D
How far
推荐题目
He said that he had met her two years _______.
#43434
A
before
B
ago
C
for 2 years
D
since 2 years ago
 —Mike, could you tell me if Mary       to my party tomorrow?—I think she will if she      time. 
#40876
A
come, has
B
comes, will have
C
will come, has
D
will come, will have
I don’t know when he_____________; when he__________, I’ll tell you. 
#39636
A
come; will come
B
will come; comes
C
comes; will come
D
will come; comes