Mum what are you doing?-Your uncle will come; I put a(an) plate on the dinning ta

问题补充：

--- Mum, what are you doing?

---Your uncle will come; I put a(an) plate on the dinning table.

A. more

B. extra

C. another

D. few

答案：

A. more

(答案→)B. extra

C. another

D. few

解析：词义辨析。 A.更多；再 B.额外的 C.另一个 D.很少。句意：妈妈，你在做什么？——你的舅舅要来了。我在餐桌上再加一个碟子。额外的一个，故选B。