问题

According ____ these messages, we knew they were ____ trouble.
A:to, in
B:at, in
C:for, at
D:of, in;
B:at, in
C:for, at
D:of, in;
正确答案是:
同类题型
They have eggs and apples _______ breakfast.
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You look unhappy, my son—I’m wondering how long it’ll be wecome to China again.
This is the _____ piano on which the composer created some of his greatest works.
Our teacher has _________ some very difficult questions to ask us.