—Why am I so slow at doing the cloze test?
—I guess you didn’t realize the use the contexts.
A. you should have made of
B. you must have made from
C. of which you could have from
D. out of which you need make
网友回答
(答案→)A. you should have made of
B. you must have made from
C. of which you could have from
D. out of which you need make
解析：考查should与动词不定式的完成时连用的含义。should have done表示本来应该做而实际上没做，shouldn’t have done表示本来不该做但实际上做了。本题的问句意思是“我单选题为什么做得那么慢？”，回答“我想你没有意识到你本该好好利用上下文。”