40. , I’ll have a letter sent to your company. A. If necessary B. If it were necessary C. As I’m necessary D. Unless it is necessary 查看更多

 

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________. I'll have a letter sent to your company.

A. If necessary

B. If it were necessary

C. As I'm necessary

D. Unless it is necessary

 

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________. I'll have a letter sent to your company.

A. If necessary

B. If it were necessary

C. As I'm necessary

D. Unless it is necessary

 

查看答案和解析>>


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