— How is the project going?

　 — In fact, you can go and check it out yourself ______.

A. if it necessary　　

B. if necessary　　

C. if you are necessary　

D. it is necessary

B

 

本題考查的是if 引導(dǎo)的條件句中的省略形式。if necessary是if it is necessary的省略形式。

 

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