Chọn lỗi sai và sửa: I suggested that you taking his advice to treat your cough

Chọn lỗi sai và sửa:
1. I suggested that you taking his advice to treat your cough.
2. The pollution of the sea can be the result of careless or dumping of waste
3. The children were playing last night outdoor when it started to rain hard.
4. The bridge was hitting by a large ship during a sudden storm last week.