问题描述:
It was raining all___when I returned home yesterday.
A、of the sudden
B、of sudden
C、of a sudden
D、of course
为什么选C不选B?固定短语不会all of sudden吗?
A、of the sudden
B、of sudden
C、of a sudden
D、of course
为什么选C不选B?固定短语不会all of sudden吗?
问题解答:
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