he wrote a letter to his friend yesterday afternoon(用from5:00 to 5:40改写) he___ ___a letter tohis friend from5:00 to 5:40 yesterday afternoon
问题描述:
he wrote a letter to his friend yesterday afternoon(用from5:00 to 5:40改写) he___ ___a letter to
his friend from5:00 to 5:40 yesterday afternoon
答
答案是 was writing
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