摘要：( ) --- Mum, where is my CD player? --- It’s in white bag on your desk. A. a B. an C. the D. 不填

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?Mum, where is my CD player?

?It's in ________ white bag on your desk.

A. a

B. an

C. the

D. /

-Mum, where is my CD player?
-It's in ________ white bag on your desk．

-- Mum, where is my CD player?

-- It's in ________ white bag on your desk.

[　　]

A．a

B．an

C．the

D．/

-Mum, where is my CD player?-It's in ________ white bag on your desk．