36, If it had not been for the heavy traffic, we would not have been late.

37, If I were you, I would ask your teacher for advice.

38, Unless you tell the truth, I’ll never see you again.

39, James is the one who helped me solved that problem.

40, The tea is too hot for me to drink.

41, Tokyo is not as densely populated as Mexico City.

42, Sydney is the largest city in the Australia.

43, There are the most people in China in the world.

44, I am really interested in the book.

45, If it had not been cold, they would have gone fishing.

46, How long have you learned English?

47, I apologize you for being rude to you yesterday.

48, It is said that she is an honest and reliable person.

49, I spent two hours doing my homework.

50, After he had left the army, he joined the army.

51, When were you born?

52, Minh used to sleep with his brother when he was small.

53, I have used this bicycle for three years,

54, These questions haven’t been answered.

Chúc bạn học tốt!