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1. I suggest planting more trees along the streets to have more shades and fresh air.

2. Na is very tired. However, she has to finish her homework before she goes to bed. 

3. Hang forgot her umbrella yesterday, so she got wet.

4. Mai is not beautiful. However, I'm very fond of her.

5. Lan suggested that Ba should study hard  for next exam.

6. Mary's eyes are weak. Therefore , she has to wear glasses.

7. I'm writing to you about bad situation, which is affecting the lake near my school. 

8. People are using electricity to catch fish now.

9. What do you think about pollution?

10. I am looking forward to hearing from you now.

1. I suggest planting more trees along the streets to have more shades and fresh air.

2. Na is very tired. However, she has to finish her homework before she goes to bed. 

3. Hang forgot her umbrella yesterday so she got wet.

4. Mai is not beautiful. However, I'm very fond of her.

5. Lan suggested that Ba should study hard for next exam.

6. Mary's eyes are weak. Therefore, she has to wear glasses.

7. I'm writing to you about bad situation, which is affecting the lake near my school. 

8. People are using electricity to catch fish now.

9. What do you think about pollution?

10. I am looking forward to hearing from you now.