Dưới đây là một số mệnh đề chính được thêm vào cho các mệnh đề điều kiện loại 1 mà bạn đã cung cấp:

1. If there is a good tour guide who speaks multiple languages, **the tourists will have a more enjoyable experience.**

2. If the city improves its transportation by adding more buses and trains, **more visitors will be encouraged to explore different areas.**

3. If they explore the local market early in the morning, **they will find the freshest produce and avoid the crowds.**

4. If the local festival is held during the summer, **many tourists will participate in the celebrations and enjoy the cultural activities.**

5. If the tourist attraction is well-maintained and clean, **visitors will be more likely to recommend it to others.**

6. If the landmark is famous for its architecture, **it will attract architecture enthusiasts and photographers from around the world.**

7. If the destination is popular for its beaches and resorts, **tourists will be more likely to spend their vacations there.**

Hy vọng những mệnh đề này sẽ hữu ích cho bạn!