问题
选择题
Every possible means _____ .
A．has tried
B．has been tried
C．was tried
D．were tried
答案
答案：B
考查主谓一致和非谓语动词。句意“每种可能的方法都被试过了。”means和try是动宾关系，应该用被动语态；排除A、C、D。故选B。
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Every possible means _____ .
A．has tried
B．has been tried
C．was tried
D．were tried
答案：B
考查主谓一致和非谓语动词。句意“每种可能的方法都被试过了。”means和try是动宾关系，应该用被动语态；排除A、C、D。故选B。