根据情景，选择最佳答案。

1．当你要向别人介绍你的朋友大明时，你应说：[ ]

A. This is Daming.                                    

B. Hello, Daming.

2．你的弟弟很调皮，你应该这样描述他：[ ]

A. My little brother is very naughty.                

B. This is my little brother.

3．老师夸奖你说：“你是个聪明的男孩。”你用英语回答说：[ ]

A. No, I'm not.                              

B. Thank you.

4．你的英语老师是一个不错的女老师，大家都说：[ ]

A. She's a bit shy.                            

B. She's a nice teacher.

5．老师指着身边的一个男孩说：“他非常聪明。”老师应该这样说：[ ]

A. He's very cool.                            

B. He's very clever.