17. In spite of his poor health, he takes part in all of his school activities.
(In spite of/ Despite + N/Ving = Although+ mệnh đề: mặc dù)
18. An ambulance will be sent to the school in 10 minutes. (câu bị động)
19. This is the first time i have met this strange man.
20. He told the children not to make so much noise.
(S+told+sb+(not)+to+V - câu trần thuật)
21. Maria suggested helping the homeless in the neighborhood./Maria suggested that we should help the homeless in the neighborhood.
22. I haven't talked to him for five months.
23. Some years back young people paid less attention to traditional festivals than they do nowadays.
24. They have never had experienced the wonderful feeling in space like this before.
25. I suggest young children should be taught to care for the environment.