22. Mary forgot __________ a letter to her mother, so she wrote to her just now.A. writing B. to write C. to have written

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22. Mary forgot __________ a letter to her mother, so she wrote to her just now.A. writing       B. to write      C. to have written

22. Mary forgot __________ a letter to her mother, so she wrote to her just now.A. writing B. to write C. to have written
22. Mary forgot __________ a letter to her mother, so she wrote to her just now.
A. writing B. to write C. to have written

22. Mary forgot __________ a letter to her mother, so she wrote to her just now.A. writing B. to write C. to have written
forget doing 忘记做过
forget to do 忘记去做
所以就选B