33. They suggested washing hands to keep the coronavirus away. (suggest V-ing: khuyên)
34. My brother was so excited about the trip that he couldn't sleep (so...that...: quá...mà...)
35. We look forward to meeting them again. (look forward to V-ing: trông chờ, mong đợi)
36. The man who works as a private investigator was wearing sunglasses.
hoặc The man working as a private investigator was wearing sunglasses.