Giúp mình với ạ:<<< (câu nào không làm đc bỏ qua luôn nhé)

33.B

34.D

35.C

36.C

37.I left my umbrella at home,which was a stupid thing to do

38.He was well trained by famous inventors and he went on to invent many useful machines

39.When i go swimming,i have to keep my eyes closed underwater

40.The children whose mothers sat on the bench chatting played in the yard