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  • 科目:英语
  • 题型:单选题
  • 难度:中等
  • 人气:519

- My dad bought me a new MP4, but I don’t know __________.
- Let’s read the instructions.

A.What to use B.how to use it
C.What to use it D.when to use
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- My dad bought me a new MP4,