单项选择题

Don't forget to bring your umbrella （）you go out

A. since  
B. because 
C. for   
D. when

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Carolina is American, （）she speaks French well

A. for   
B. so   
C. but   
D. as
单项选择题
（）players came onto the field

A. To be cheering    
B. Cheered
C. The audience cheering  
D. Having cheered
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