题目内容
用动词take, do, make, swim, finish, learn, wash, turn, see, begin, write的适当形式填空
I ________ a letter when it ________ to rain last Sunday.
答案:was writing, began
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题目内容
用动词take, do, make, swim, finish, learn, wash, turn, see, begin, write的适当形式填空
I ________ a letter when it ________ to rain last Sunday.