II. Language focus
9d algae
15b as it was raining heavily
17d contaminated
18b light
19c national
20c make
21b That's a good idea
22a That's a good idea
25b to
26d poisons
27d survival
28b reduces
29b Yes,she did
30c because she thought htey might fall down
31d she was stress because of her messy room
32a visual pollution doesn't affect on people