题目内容
动词填空,用括号内所给动词的适当形式填空。
Years ago we didn't know this, but recent science ________(show)that people who don't sleep well will soon get ill.
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题目内容
动词填空,用括号内所给动词的适当形式填空。
Years ago we didn't know this, but recent science ________(show)that people who don't sleep well will soon get ill.
|
has shown |