单项选择题

The classroom is quite clean()some waste paper on the floor.

A. except for  
B. except      
C. besides
D. without

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单项选择题
She longed to visit Italy, ()she often dreamt about it.

A. so seriously that           
B. so eagerly that
C. to such an extent that         
D. so anxiously that
单项选择题
Even if he()here, he would not be able to help us.

A. is 
B. had been    
C. has been
D. were
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