问题
选择题
The violin will have to be tuned before it _____.
A．plays
B．should play
C．is played
D．is being played
答案
答案：C
句意：这把小提琴需要在使用它之前还回来。当主句为将来时态时，条件从句用一般现在时态表示将来的动作，it为动作对象，故用被动语态。选C。
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The violin will have to be tuned before it _____.
A．plays
B．should play
C．is played
D．is being played
答案：C
句意：这把小提琴需要在使用它之前还回来。当主句为将来时态时，条件从句用一般现在时态表示将来的动作，it为动作对象，故用被动语态。选C。