选一选。

1. 祝别人生日快乐时，应说：    [ ]

A. Happy birthday!

B. Good morning!

C. Thank you!

2. 向别人介绍，这是我的好朋友时，应说：[ ]

A.  Hello, Li Ping.

B. This is my good friend, Li Ping.

C. This Li Ping.

3. 询问别人年龄时说：[ ]

A. How are you?

B. What's your name?

C. How old are you?

4. 邀请别人一起吃蛋糕时说：  [ ]

A. Let's eat the cake.

B. I like cake.

C.  Have some cakes.