A large number of students in our school ______ from the countryside; the number _____ growing these years.
A. is; has been
B. are; has been
C. is; have been
D. are; have been
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He no less than I _____ eager to go the Great Wall.
A. am
B. is
C. are
D. were
Air pollution, together with littering, ____ many problems in our industrial cities today.
A. causes
B. cause
C. caused
D. causing
The Arabian Nights ______ well know all over the world, in which many a story ________ interesting and instructive .
A. is; are
B. are; is
C. are; are
D. is; is
The young _____eaten up almost everything; one and a half babanas ______ left on the table.
A. is; are
B. are; is
C. has; have been
D. have; has been