84. paid前加been 85. 去掉more

80. take→get 81. such→so 82. stopping→stop 83. water前加the

4. 76. serious→seriously 77. to→into 78. √ 79. in→on

84. she→he 85. 去掉it

80. √ 81. it→which 82. their→his 83. 去掉to

3. 76. returning后加to 77. have→had 78. say→speak 79.interested→interesting

84. harmful→harm 85. healthy→health

80. √ 81. But→However 82. his→their 83. 去掉they

2. 76. has后加a 77. lives→life 78. us后加of 79. which→that

85. making→carrying