1 were ( if 2 )
2 would be ( if 2 )
3 had ( if 2 )
4 wouldn't be ( if 2 )
5 would grow ( if 2 )
6 Noise pollution in the big cities leads to hearing prolems.
7 Lots of aquatic animal die because of the oil spills.
8 If you were a president in your country, what would you do to protect the enviroment?
9 A ( every day -> HTĐ )
10 C ( âm 2 các từ còn lại âm 1 )
