问题
选择题
So far, no agreement ________ on which type of exercise is best suitable for keeping fit.
A．has reached
B．has been reached
C．was reached
D．had been reached
答案
答案：B
考查时态和语态。so far与现在完成时连用，reach与agreement之间是动宾关系，所以应该用被动形式。句意：到目前为止，关于哪种锻炼最适合于保持健康仍然没有取得—致意见。