How many desks and chairs _____ in the new classroom A.is needed B.will be needed

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How many desks and chairs _____ in the new classroom A.is needed B.will be needed
How many desks and chairs _____ in the new classroom
A.is needed B.will be needed

How many desks and chairs _____ in the new classroom A.is needed B.will be needed
这是一个被动语态
你把句子还原 主语是 desks and chairs
相当于 we‘ll need some desks and chairs in the new classroom 改成被动即是
some desks and chairs will be needed in the new classroom
与这道题是同样的道理,我这样讲你懂了吗?

A错在应该用are,而非is
因为是新教室
所以选B也是对的
最重要的是A是错的

B. will be needed
用一般将来时
因为是 in the new classroom ,所以将需要多少桌子椅子