V.
1. The lesson which we studied yesterday wasn't easy.
2. Food can't be sold on the sidewalk (by them).
3. I asked Tam if she wanted to visit the Great Wall in China.
4. Loan said she was decorating her house.
5. The apple is so green that she can't eat.
VI.
1. The tree was planted near a church.
2. It has gained an evil reputation in recent years.
3. If he touches the tree, he will get bad luck.
4. Because tourists have come ... all parts of the country to see it. (As ≈ Because ≈ Then)
5. No, they aren't.