`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. 

Bạn có thể hỏi lại giáo viên.

`37` . Mary plays the guitar worse than Linda does.

`38` . This is the first time we have ever been in such an embarrassing situation.

`39` . You don't have to bring food because it is included in the package.

`40` . Unless she is very shy , she doesn't enjoy parties.