Is necessary to complete the building before the end of this month?A.heB.itC.tha
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Is ________ necessary to complete the building before the end of this month?
A.he
B.it
C.that
D.this
试题答案
B

Is ________ necessary to complete the building before the end of this month?
A.he
B.it
C.that
D.this
B