`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.

`71.` won ⇒ didn't win

`72.` should ⇒ will 

`73.` although ⇒ nevertheless

`74.` between ⇒ from

`75.` running ⇒ sports

xii

`76.` My brother is a very good football player.

`77.` Badminton is Mai's favourite sport.

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

`79.` Children do many after-school activities when school finishes.

`80.` Lan can play basketball very well.

$JeiKei$