单项选择题

It is hard to cheat in the exams without ______ .

A. catching
B. being caught
C. be caught
D. having being caught
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单项选择题
He has made ______ great progress ______ we can hardly believe it.
A. so... that
B. such... that
C. such... as
D. so... as
单项选择题
A few days later, the policeman found the old man ______ in bed, dead.
A. lying
B. to lie
C. laying
D. lied
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