X/

66.How often are the Olympics Games held?

67.What are the children doing?

68.Where were the first Olympic Games took place?

69.When did Pele begin his career?

70.Why do you like swimming?

XI/

71.Won → lost

72.Should → will

73.Although → so

74.Difference → differences

75.Play → take

XII/

76.My brother is a good football player

77.Badminton is Mai's favorite sport

78.Sports and games play an important role in children's lives

79.Children do many after-school actitivities when school finishes

80.Lan can play basketball well

chúc bạn học tốt,nếu thấy hữu ích thì cho mình 5* với câu trả lời hay nhất nha^^

Đáp án:

Giải thích các bước giải:

X/

66.How often are the Olympics Games held?

67.What are the children doing?

68.Where were the first Olympic Games took place?

69.When did Pele begin his career?

70.Why do you like swimming?

XI/

71.Won → lost

72.Should → will

73.Although → so

74.Difference → differences

75.Play → take

XII/

76.My brother is a good football player

77.Badminton is Mai's favorite sport

78.Sports and games play an important role in children's lives

79.Children do many after-school actitivities when school finishes

80.Lan can play basketball well