A. do you B. will you C. are you D. can you
单项选择题It is those people who （） most angry at what is going on at university campuses.
A. is B. was C. were D. are
单项选择题We are using up our natural resources too quickly and at the same time we are（）our environment with dangerous chemicals.
A. protecting B. saving C. polluting D. fighting
