完成下列对话，每空一词。

David=D     Alice=A    

A: David,nice to meet you.    

D: Alice,nice to meet you,How   1   are you?

A:   2  , thank you. And you?

D:  I'm fine,too. By the way,   3   is in your hand?

A: A book. I want   4   read it.

D:   5   would you like to read it?

A: Under the tree.

D: Which book do you read,an English one   6   a Chinese one?

A: An English one.

D:   7   you like English?

A: Yes, and I think   8   interesting.

D: Do you need   9  ?

A: No, I can help myself. Thanks.

D: You're  10  .

1.            2.             3.             4.              5.        

6.            7.             8.             9.             10.        

外用电梯一般架设高度可达( )m。

A．50

B．100

C．150

D．200