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问题

Why? Tom, your shirt is so dirty! — Mum, I ______ my storeroom downstairs

A:cleaned
B:have cleaned
C:was cleaning
D:have been cleaning
正确答案是:
同类题型

The little time we have together we’ll try_____ wisely

.—I give upIt’s too hard—Really? I__________you could make it through

The situation in the country is ________, yet we are still concerned about its future.

This basket he sent me yesterday _______ many kinds of fruits, _______ apples and pears.

The boy was made the streets without money in the old days.

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