33. Maria asked John how long he had learnt Spanish.

34. He is believed to be very talented when he was young.

35. I wish I knew hot to write an essay.

36. If it wasn't raining, we could have dinner in the garden.

37. Although she is a brilliant singer, she refuses to sing in public.

38.  The poem, which he read to us, has been translated into several languages.

39. It is such a difficult question that nobody can answer it.

40. Because of the loud noise from the night club, the residents of the stret cannot sleep.

Chúc cậu học tốt ^^ !

33. Maria asked John how long he had learnt Spanish.

34. He is believed he was very talented when he was young.

35. I wish I knew how to write an essay. 

36. If it isn't raining, we could have dinner in the garden.

37. Although she is a brilliant singer, she refuses to sing in public.

38. He reads the poem which has been translated into several languages to us.

39. This is such a difficult question that nobody can answer it.

40. The residents of the street cannot sleep because of the loudness noise from the night club.

Không chắc đúng hết nhưng mong giúp được cho bạn '-')