题目内容
If your computer goes wrong frequently,I suggest you go and see acomputer ___.
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____the manufacturer's repeated claims that the product is safe,many people have stopped buying it.
Mother___a smile at her child when she saw him trying to puton his shoes by himself.
He heard footsteps behind him, and___around to see who it was.
It’s a natural tendency that one learns to___before he learns to walk.
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