C
從上下文看,因為前面是過去時（打開包）,這里就應該用過去完成時（忘記帶干凈鞋子在打開包之前就已經發(fā)生了）
when he opened his bag on the train,he found that he------to put the clean shoes in
when he opened his bag on the train,he found that he------to put the clean shoes in
A forgot B forget C had forgot D would forget選那個那,我選C但是自己說不清楚為什么
A forgot B forget C had forgot D would forget選那個那,我選C但是自己說不清楚為什么
英語人氣：526 ℃時間：2020-03-26 01:28:08
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