[ Grammar ]
The government has tried to limit the number of private cars _____ the problem of air pollution remains unresolved.
A. when
B. but
C. so
D. if
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Adjective or Adverb › ViewPolish is one of … languages to learn.
A. the most difficult
B. most difficult
C. more difficult
D. a more difficult
E. difficult
Object Pronouns › View
You broke the window. You broke ______.
A. you
B. it
C. we
TOEFL Adjective and Adverb › ViewOn July 4, 1776, the American colonies declared . . . independence from Britain.
A. it was
B. was their
C. with them
D. their
Mixed General Quiz › View
Macbeth is Shakespeare’s most violent play, so it is not ideal family entertainment.
A. compound
B. complex