viết lại n câu sau dùng gợi ý sao cho nghĩa không thay đổi và cho biết mỗi câu thuộc kiểu câu (thì) j vd: the water polluted, so the fish are die =because water polluted so the fish are die 2 the have delivered food clother supplies to homeless = Food and clother ................................................................... 3 you study harder you will get good mark = if you ........................................... 4 the took risident of flooded village to a safe place last night =pesidents of flooded villages