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1. Over population is causing
A. more
2. Bus is the main public
A. travel
3. We have to take the final exam
A. in
4.
A. Because
B. on
problems than we can imagine.
B. less
C. few
D. worse
in Viet Nam.
B. tricycle
C. transport
D. vehicle
June.
C. for
D. of
D. So
D. we
C. How long
D. How far
the sun is shining, it isn't very warm.
B. Although
C. However
5. We will go on holiday with some friends of..
A. our
B. ours
C. us
A. How many
B. How often