请从A、B、C、D四个选项中选出可以填入空白处的最佳选项。
16. --- Mum, where is my CD player?
--- It’s in white bag on your desk.
A. a B. an C. the D. 不填
17. --- Tom, Mary can’t sharpen the pencil. Can you give a hand?
--- Certainly.
A. she B. her C. hers D. herself
A. --- _______ day it is!
--- Let’s go out and enjoy the sunshine!
16. --- Mum, where is my CD player?
--- It’s in white bag on your desk.
A. a B. an C. the D. 不填
17. --- Tom, Mary can’t sharpen the pencil. Can you give a hand?
--- Certainly.
A. she B. her C. hers D. herself
A. --- _______ day it is!
--- Let’s go out and enjoy the sunshine!

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