问题
We will have a picnic_____ Sunday morning[ ]
A: on
B: in
C: at
D:/
B: in
C: at
D:/
正确答案是:
同类题型
The number of foreign students attending Chinese universities ________ rising steadily since1990.
Eric, isn’t this book yours?—Yes, it used to belong to _________, but from now on it isn’t.
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