Đọc đoạn văn và trả lời câu hỏi

KÈM DẪN CHỨNG NỮA NHÉ 
----- Nội dung dịch tự động từ ảnh -----
This garbage damages the environment. Although a lot of garbage is buried in the
ground, some of it gets blown about in the wind. Also, when garbage is burnt, poisonous
gases are given off into the air. The garbage thrown into the sea will pollute the water.
What can we do about these problems? One very easy answer is to produce less garbage.
We can recycle things made from glass and paper as well as tin cans. People can refuse to
take the plastic bags from the shops and supermarkets by bringing with them their own bags
or baskets when they go shopping.
The government should tell people about the dangers of garbage pollution. Education is
perhaps the most important factor for keeping our environment healthy for the future.
Question 30: According to paragraph 2, poisonous gases are given off when we
A. throw the garbage into the sea
C. burn the garbage
Question 31: According to paragraph 3, when we go shopping, we should
A. buy less food
C. use our own baskets or bags
Question 32: All of these can be recycled EXCEPT
A. glass
B. paper
Question 33: The word "it" in paragraph 2 refers to
B. environment
A. garbage
Question 34: The word "poisonous" in paragraph
B. clean
A toxic
B. recycle the garbage
D. blow the garbage about
B. tell other people about recycling
D. ask for more plastic bags
C. tin cans D. poisonous gases
C. stadium
2 is closest in meaning to
C. healthy
D. ground
D. pleasant