问题
If you are _______trouble, you can ask the policemen _______ help.
A:in, to
B:in, of
C:on, for
D:in, for;
B:in, of
C:on, for
D:in, for;
正确答案是：
同类题型
If you are not sure how to use the words, you may ______ the words in your handout.
That’s a ___time___ breakfast!
I have got a bad cold.-No wonder you _______these days.
We __________a great time at the party last night.
Tsinghua University, ______ in 1911, is home to agreat number of outstanding figures.