Điền từ thích hợp vào chỗ trống

8- Ba was (serious)
9-
10- We should collect
11- A
12- Raw sewage is pumped
13- Hoa was
14- The old man walked
15- I always drive more
16- They are discussing the
17- Special
18- I have lots of
ill after eating those (poison)
are interested in the protection of the environment. (conserve)
paper, glass and cans for recycling. (use)
is better than cure. (prevent)
into the sea. (direct)
19- Your brother works as an
20- People must learn how to keep the environment
21- Jackson cancelled the concert, to the great
22- We must use our
E/TRANSFORMATION
pleased that she got an A for her assignment. (extreme)
to the park. (slow)
at night. (careful)
of natural resources. (preserve)
should be made for children.(provide)
for the park's future. (suggest)
mushrooms
tiful gion
doesn't he? (environment)
(pollute)
resources economically. (nature)
of his fans. (disappoint)