The drug ______ children came under strong attack from ______ professional observers who were deeply ______ its widespread use among kids.
A.concerning; concerned; concerned with
B.concerning; concerned; concerned about
C.concerned; concerning; concerned about
D.concerned; concerning; concerned with
______excited Jenny most was ______ she finally succeeded in ______seemed to be the most difficult exam to him.
A.'That; that; which B.What; that; what
C.That; because; that D.What; because; which
Robots can be reprogrammed by a computer to do another one after completing one specific task, and this is ______ automatic machines differ.
A.because B.what
C.where D.how
— I’m delighted that we have accomplished this tough task successfully.
—_____. There is still a lot of work to be done here.
A.You can say that again B.It’s hard to say C.I’d rather you didn’t D.Far from it
Even in some developed countries, the infected people are _____ to be denied health care than other people.
A.three times as likely B.as likely three times
C.three times more likely D.more likely three times
__________of the land in that district __________ covered with trees and grass．
A.Two fifth; is B.Two fifths; is C.Two fifth; are D.Two fifths; are
