Food and rent are more expensive than ________ used to be.
A. it
B. that
C. they
D. both
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The rest of the novel ________ very interesting.
A. were
B. are
C. is
D. be
The young ________ often very impatient with their elders
A. is
B. are
C. were
D. was
A number of their products ________ put on exhibition.
A. has been
B. is
C. have been
D. are
When and where to build the new factory ________ yet.
A. has not been decided
B. are not decided
C. has not decided
D. have not decided
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