火眼金睛，选出合适的答案。

1. 当你认识了一位新朋友时，你可以说：[ ]

A. Nice to meet you.

B. What's this?

2. 她是我的朋友，可以说：[ ]

A. She is my friend.

B. He is my friend.

3. 关上门，可以说：[ ]

A. Close the door.

B. Close the window.

4. 你想知道它是什么颜色的，可以问：[ ]

A. What colour is it?

B. Where is it?