You should ______(hand) in your exercise book first(根据句意用所给单词的适当形式填空)

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You should ______(hand) in your exercise book first(根据句意用所给单词的适当形式填空)
You should ______(hand) in your exercise book first(根据句意用所给单词的适当形式填空)

You should ______(hand) in your exercise book first(根据句意用所给单词的适当形式填空)
You should hand in your exercise book first.
这句是说还没交
也可以是
You should have handed in your exercise book first.
这后一句是已经交过了,但你本该先交

hand
should + 动词原形

hand

hand /have handed

原形或have done

hand 或者 have handed 没有语境,不能判断

should + 动词原形