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I/
1. Minh spends 2 hours doing his homework every day.
2. Although he worked hard, he was not successful in the contest.
3. I wish I could cook as well as my brother.
4. Nam said that he was working in London then.
5. I haven't spoken to her for two years.
II/
1. She suggested going to Huong pagoda this weekend.
2. It is necessary for you to practice English every day.
3. We haven't seen each other for 5 years.
4. Mr Bill used to go swimming when he was young.
5. If today were Sunday, I would go fishing with my father.