Combine each pair of sentences below to make a first conditional sentence:
1. We walk or cycle. We are healthy.
2. We use the car all the time. We make the air dirty.
3. You reuse paper. You save trees.
4. You make noise. Your sister doesn’t sleep.
5. I see a used bottle on the road. I put it in the bin.
Giúp mik trc trưa ngày 20/4 nhé! Cảm ơn các bn nhìu!<3
$2$.⇒ If we use the car all the time, we will make the air dirty.
$3$.⇒ If you reuse paper, you will save trees.
$5$.⇒ If I see a used bottle on the road, I will put it in the bin.