If___carefully,your final exam will be successful.A preparing B prepared以及原因
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If___carefully,yourfinalexamwillbesuccessful.ApreparingBprepared以及原因If___carefully,yourfinalexamwill
If___carefully,your final exam will be successful.A preparing B prepared以及原因
If___carefully,your final exam will be successful.
A preparing B prepared以及原因
If___carefully,your final exam will be successful.A preparing B prepared以及原因
A preparing动名字表主动
Bprepared 过去分词表被动
所以选A
A
If preparing carefully, your final exam will be successful.
还未发生，非常期待
If prepared carefully, your final exam would be successful.
已经完成，懊悔不已
A, if+doing