The boss refused to sell the car for he thought was not satisfactory.A. whatB. that C. wh

问题补充：

The boss refused to sell the car for he thought was not satisfactory.

A. what

B. that

C. which

D. how

答案：

(答案→)A. what

B. that

C. which

D. how

解析：考查宾语从句：句意：老板拒绝以他认为不满意的价格把汽车卖出去。介词for后面接的是宾语从句，he thought是插入语，所以宾语从句缺少主语，用what引导，that引导宾语从句是不做成分的，which哪个，how怎样，不符合句意。选A。