It _____ this way,though we no longer use the method.A.used to do B.used to be doneC.is used to do D.is used to doing这道题为什么选B?请赐教

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It _____ this way,though we no longer use the method.A.used to do B.used to be doneC.is used to do D.is used to doing这道题为什么选B?请赐教

It _____ this way,though we no longer use the method.A.used to do B.used to be doneC.is used to do D.is used to doing这道题为什么选B?请赐教
It _____ this way,though we no longer use the method.
A.used to do B.used to be done
C.is used to do D.is used to doing
这道题为什么选B?请赐教

It _____ this way,though we no longer use the method.A.used to do B.used to be doneC.is used to do D.is used to doing这道题为什么选B?请赐教
no longer是个重要的时间先后标志,表示前后事物的反差
因此前面肯定是过去时
it指代method,所以要用被动语态

A 过去常常做
B 过去常常被做
C 用来做
D 习惯于做
因为是METHOD,所以应该是方法被用,显然是B

首先是应该用use to,是表曾经,然后是被动,用be done

选B
it 指的是method,
前半句的意思是:这种方法通常被这样使用