People should open the window in the morning to make air ________ in order to keep the indoor air fresh.
A. subscribe B. circulate C.accelerate D. reject
B
Satellites make TV accessible to people who live far away from cities, and satellite dishes can be often seen _________ throughout the country side and remote areas.
A. distributing B. to distribute C. distribute D. distributed
D
Painting from still images leads to a loss of sensibility, which is ________ to an artist.
A. absolute B. vital C. special D. urgent
B
The young man bears himself with wisdom and courage. Several times already he ______ particularly valuable to the company.
A. is proving B. is proved C. has been proved D. has proved
D
—Can I use the telephone on the table, Sir?
—Under no circumstances ________ to use the telephone in the office for personal affairs.
A.anyone is allowed B.nobody is allowed
C.is anyone allowed D.is nobody allowed
C
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