问题
I got to Qingdao ______ the morning of October 16th last year. [ ]
A: on
B: at
C: in
D:of
B: at
C: in
D:of
正确答案是：
同类题型
There used to ________ a clean river in the village, but now it’s dirty.
Mr. Duncan raised an unnecessary question__________-he then failed to find an answer.
Oh, there is someone knocking at the door. — __________ must be your neighbour, Mrs Black.
Where we will build the dam has not been decided yet, ______?