`37.` Mary plays the guitar worse than Linda
`38.` This is the first time we've been in such an embarrassing situation.
`39.` You don't need to bring food because it is included in the package
`40.` Unless she is very shy, she doesn't enjoy parties.
* Câu 40 đáng lí là - She is very shy, that's why she doesn't enjoy parties thì chuyển sẽ đúng nghĩa hơn:
→ Unless she isn't very shy, she doesn't enjoy parties.
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