at present,mathematics is the main subject ( )here.

at present,mathematics is the main subject ( )here.
A.to be taught B.being taught
为什么选B不选A?

主恩浩荡 1年前已收到2个回答举报

昔日11中幼苗

共回答了19个问题采纳率：89.5% 举报

这是一个考时态问题,at present 意为目前,现在.
所以整个句子应该用现在进行时.而数学这个学科是被教的,所以要用被动语态.
A项的意思是即将,将要……,这样它需要将来时.所以时态不符.

1年前

leezee 果实

共回答了9512个问题举报

因为句中说明at present（目前）正在进行，故用进行时态的被动语态

1年前

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