1The new restaurant looks good. However, it seems to have few customers. 

2.Although My foot was hurt, I managed to walk to the nearest hospital. 

3. I've been too busy to answers my email.Nevertheless, I'll do it soon. 

4. I got very wet in the rain although I had an umbrella. 

5. The story of the film was good.Nevertheless, my mother didn't like the acting. 

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Xin ctlhn ạ

1. The new restaurant looks good. It seems to have few customers. (However)

-> The new reataurant looks good; however, it seems to have few customers.
2. My foot was hurt. I managed to walk to the nearest hospital. (although)

-> Although my foot was hurt, I managed to walk to the nearest hospital.
3. I've been too busy to answers my email. I'll do it soon. (Nevertheless)

-> I have been too busy to answer by email; nevertheless, I will do it soon.
4. I got very wet in the rain. I had an umbrella. (Although)

-> Although I had an umbrella, I got very wet in the rain.
5. The story of the film was good. My mother didn't like the acting. (nevertheless)

-> The story of the film was good; nevertheless, my mother didn't like the acting.