选出不同类的一个。

选出不同类的一个。
( ) 1. How are you? A. Fine, thank you.
( ) 2. Nice to meet you. B. Nice to meet you, too
( ) 3. Colour it brown. C. OK!
( ) 4. Good afternoon. D. Good afternoon

Nice to meet you, Li Ming.
is _________.
⑴black A. 
⑵brown B. 
⑶white C. 
⑷orange D. 
Colour the eraser orange.
—________