问题标题：
英语改病句That'sagoodnewsforJane.Sammusttakessomemeddicine.Wemustn'tleaningoutofthewindow.
问题描述：
英语改病句
That'sagoodnewsforJane.
Sammusttakessomemeddicine.
Wemustn'tleaningoutofthewindow.
冯萍慧回答：
That'sgoodnewsforJane.（news不可数）
Sammusttakesomemedicine.（must后跟动词原形）
Wemustn'tleanoutofthewindow.
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