你会翻译吗？选择正确的译文。

1. 随便吃。[ ]

A. Can I help you?

B. Help you.

C. Help yourself.

2. 我会用筷子。[ ]

A. I can wash chopsticks.

B. I can use chopsticks.

C. I can cut chopsticks.

3. 让我试一试。[ ]

A. Let me try.

B. Let you try.

C. Let me show.

4. 晚安。 [ ]

A. Good morning.

B. Good night.

C. Goodbye.