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`37.` It is the first time Tom has used such an interesting chatbox.

`->` It is the first time `+` S `+` have/has `+` P2

`=` S `+` have/has `+` never `+` P2

`38.` Despite his intelligence, he couldn't solve that physics problem.

`->` Despite `+` Noun/Noun Phr/V-ing, clause: mặc dù...nhưng...

`39.` In order not to disturb my neighbours, I don't usually sing karaoke at home.

`->` In order (not) `+` to V, clause: để...

`40.` Mrs. Chau told the students not to go out without her permission.

`->` told sb (not) to do sth (dạng cầu khiến)