单项选择题

I can't remember （）received an email from Robert lately

A. had    
B. have
C. having   
D. to have

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单项选择题
The company tried （）reasonable financial goals for the New Year

A. set    
B. to be set
C. to set   
D. being set
单项选择题
It would be silly to think that （）a motorcycle is not dangerous

A. driving  
B. drive
C. a driven 
D. being driving
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