What is concerning us greatly is ____ the workers held up in that area yesterday will be set free.
A. that B. what C. when D. which
Even if there is no scientific proof secondhand smoke causes cancer, there is no reason why nonsmokers should be forced to take this risk.
A. which B. that C. when D. where
Great inventors don’t ________ graduate from famous universities. Some didn’t even go to university.
A. likely B. necessarily C. really D. particularly
Being constantly exposed to advertisements is annoying, but it ______ be pleasant sometimes.
A. shall B. need C. can D. must
Film is not only a universal entertainment mode in modern times, but also an important ________ for cultural communication.
A. transportation B. appearance C. controversy D. vehicle
Turn on CCTV news and we ________how happy our life is. But there is no denying that over the past decades, the cost of living ________ sharply.
A. are seeing; had increased B. will see；has been increasing
C. see; increased D. have seen; is increasing
