23, B- dam (n- cái đập)

24, D – I don’t think the exam will be very difficult.

25, A – We will meet you outside the stadium in half an hour.

26, B -> should

27, D -> Would buy

28, D -> would

29, B – is made

30, C -> it

31, If he had enough money, he would buy a new cả.

32, If I didn’t have a date with my old classmate, I could go to the beach with you this weekend.

33, If it didn’t rain heavily, the match couldn’t be cancelled.

34, If I weren’t poor, I would travel around the world.

35, If I weren’t tired, I could finish my work.

36, Rice is exported to many countries in the world by our company.

37, A lot of homework is given to students by the teachers last term.

38, These flowers are watered by my mother every morning,

39, The dinner is being prepared in the kitchen by her mother.

40, Our teeth should be brushed twice a day.

ℂ𝕙𝕠 𝕞𝕚̀𝕟𝕙 𝕩𝕚𝕟 𝟝* + 𝕔𝕒̉𝕞 𝕠̛𝕟 + 𝕔𝕒̂𝕦 𝕥𝕣𝕒̉ 𝕝𝕠̛̀𝕚 𝕙𝕒𝕪 𝕟𝕙𝕒̂́𝕥 𝕟𝕙𝕒 >~<

~ 𝓒𝓱𝓲𝓵𝓵 𝔀𝓲𝓽𝓱 𝓶𝓮 ~