22.Maryforgot__________alettertohermother,soshewrotetoherjustnow.A.writingB.towriteC.tohavewritten
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题目内容：
22. Mary forgot __________ a letter to her mother, so she wrote to her just now.
A. writing B. to write C. to have written
优质解答
forget doing 忘记做过
forget to do 忘记去做
所以就选B
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