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题目内容
（中国石油大学-《大学英语4》）
分)
I didn’t know what to do, but then an idea suddenly ____ to me.
A)
appeared
B)
happened
C)
occurred
D)
emerged
I didn’t know what to do, but then an idea suddenly ____ to me.
A)
appeared
B)
happened
C)
occurred
D)
emerged
参考答案
