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题目
I forgot _____ a pen yesterday and bought another one today .A.to buy B.buying
I forgot _____ a pen yesterday and bought another one today .A.to buy B.buying
说一下选什么和理由

提问时间:2021-03-19

答案
选A
forget to do忘记要去做某事(没做)
forget doing 忘记已经做过某事了(已做)
I forgot _to buy_ a pen yesterday and bought another one today .
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