1. If people have a shower instead of a bath, they will save a lot of water.
2. If you see someone thrrow rubbish on he road, what will you do?
3. Kate phoned me last night. She is on holiday in France. She is having a great time and doesn't want to come back.
4. How long have you studied English?
5. He hasn't finished doing it yet.
$\text{~ Chúc bạn học tốt ~}$
$\text{~ Nếu được thì cho mk trả lời hay nhất nha! ~}$