—Could you tell us _________ to do it?
—Of course. First of all, you should clean the wall, then clean the floor.
A.when | B.what | C.how | D.whether |
—Could you tell us _________ to do it?
—Of course. First of all, you should clean the wall, then clean the floor.
A.when | B.what | C.how | D.whether |
试题篮
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