根据句意，用括号内所给单词的适当形式填空。

1. Many Chinese have trouble using a knife and fork _________ (correct).

2. They will lose __________ (they) if they go down that path.

3. Are you satisfied with these __________ (dancer) performances in the opera?

4. When you feel tired, you'd better wear _________ (energy) colours, such as green.

5. Don't get _________ (patient) about your personal trouble.