1 he has had a cold  for two days because he didn't wear enough warm clothes

-> thì HTHT 

-> s + have / has + VPII 

-> because + S + V + S + V 

2  I stayed home because it rained.

-> thì QKĐ

-> because + S + V + S + V 

3 They've decided to clean it up because it is full of rubbish 

-> because + S + V + S + V 

4 Because she works in that small town, she's lived there for three years.

-> thì HTHT 

-> s + have / has + VPII 

-> because + S + V + S + V

 5 They think they should move there because the neighbourhood is nice and quiet

-> because + S + V + S + V

-> should + v nguyên mẫu

1. He's had a cold for two days because he didn't wear enough warm clothes

2. I stayed home because it rained.

3. They've decided to clean it up because the lake because the lake is full of rubbish

4. She's lived in that small town for three years because she works in that small town

5. They think they should more there because the neighborhood is nice and quiet