1.Despite knowing the answer, she refused to help him.
 ⇒ Although she knew the answer, she refused to help him

2.Although it was raining heavily, a lot of people went to the football match

⇒ In spite of the heavy rain, a lot of people went to the football 

3.They will build a solar power plant in the Australia desert next year
⇒ A solar power plant will be built in the australia desert next year

4. How far is it from your house to the nearest post office?
⇒What is the distance from your house to the nearest post office?

5. We found this work boring

⇒We found this boring work.

6. He gave Ann a meaning present.

⇒A meaning present was given to Ann

1. Although she knew the answer, she refused to help him

2. In spite of heavy rain, a lot of went to the football match

3. A solar power plant will be built in Australia desert next year by them

4. What is the distance between your house and the nearest post office ?

5. We thought this working is boring

6. A meaning present was given by him