`37.` They suggested washing hands to keep the coronavirus away.

`-` S+ suggest(chia) + V-ing: gợi ý làm gì đó

`38.`  My brother was so excited about thư trip that he couldn't sleep.

`-`  S+ V + so + adj (+O)+ that + clause: ai đó như thế nào đó đến mức mà ...

`39.` We look forward to meeting them again.

`-` look forward to doing sth: mong chờ làm gì đó

`40.` The man who was wearing sunglasses works as a private investigator.

`-` who thay thế cho N chỉ người

`37` washing hands to keep the corona virus away.

- Why don't we do sth : Tại sao chúng ta không làm gì?

- S + suggest (chia theo thì) + V-ing : đề nghị, gợi ý làm gì

`->` Đưa ra lời gợi ý

`38` so excited about the trip that he couldn't sleep.

- S + tobe + so + adj + that + mệnh đề : quá… đến nỗi mà…

`39` to meeting them again.

- expect to do sth = look forward to doing sth : mong đợi, háo hức làm gì

`40` who was wearing sunglasses works as a private investigator.

- who là ĐTQH thay thế cho danh từ chỉ người

- Có thể làm chủ ngữ hoặc tân ngữ trong MĐQH