An outbreak of cholera may happen when people drink untreated water. => If drinking water
1 câu trả lời
`to` If drinking water is untreated, an outbreak of Cholera may happen.
`-` Form : If+S+V(HTĐ), S+will/can/may+(not)+V0...... (If 1 )
`-` ở đây lấy chủ từ 1 là : drinking water
`-` ngoài ra còn có thể làm như sau : If people drink untreated water, an outbreak of Cholera may happen.