1. It takes thirty minutes to water these flowers in the garden.
2. Although my mother cooks very well, I can't cook. (however)
3. My father allows me to buy this gift for my sister. (let)
4. It's raining; however, the farmers still work in the paddy fied.
--> Although
5. Travelling by air is more interesing than travelling by car.
--> She prefers
6. It take a day to finish this task.