ĐÁP ÁN+GIẢI THÍCH:

21/ He forgot to set the alarm clock, so he overslept  and missed the flight.

22/It would be much easier to choose presents for him if you knew his likes and dislikes  .

        likes and dislikes: những cái thích và những cái không thích

23/Mary was very attentive (adj) , taking notes in her class.

24/I am grateful for the constant support  of my husband.

   to be grateful to somebody for something: biết ơn ai về cái gì

25/Do you agree to share  your room with him?

26/What should we do to raise the team spirit ?

         team spirit: tinh thần đồng đội

27/Soccer, volleyball and baseball are all team sports .

28/The performance of the team is a good demonstration of team effort .

21/ He forgot to set the alarm clock, so he overslept  and missed the flight.

22/It would be much easier to choose presents for him if you knew his likes and dislikes  .

23/Mary was very attentive (adj) , taking notes in her class.

24/I am grateful for the constant support  of my husband

25/Do you agree to share  your room with him?

26/What should we do to raise the team spirit ?

27/Soccer, volleyball and baseball are all team sports 

28/The performance of the team is a good demonstration of team effort .