86. The question _______ at the meeting tomorrow is very important.
A. to discuss B. being discussed
C. to be discussed D. will be discussed
87. Pierre often makes himself _______ by gesturing with his hands.
A. to understand B. understanding
C. to be understood D. understood
88. Some critics have passed laws that coal and oil _______ only if their sulfur content is low.
A. burning B. to burn
C. being burning D. to be burned
89. It is time to ______ fields in which they are just as capable as men.
A. keep women’s B. stop to keep women out
C. keep women away D. stop keeping women out of
90. Today the police can watch cars ______ on roads by radar.
A. run B. to run
C. running D. to be run
答案:86-90 CDBDC
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