Combine the following with suitable words
(if , after, because, although , when )
1. Trees help clean the environment. They filter pollutants from the air .
2. I love math's . She won't go out.
3. It rain's . She won't go out .
4. She went for a long walk . She was tired.
5. I was happy. My friends planned a surprise birthday party for me .
1. Trees help clean the environment because they filter pollutants from the air.
2. There is no relation between the two sentences.
3. If it rains, she won't go out.
4. She went for a long walk although she was tired.
5. I was happy when my friends planned a surprise birthday party for me.
2. There is no relation between the two sentences.
3. If it rains, she won't go out.
4. She went for a long walk although she was tired.
5. I was happy when my friends planned a surprise birthday party for me.