7. tiring→tired　 8. both→all 9. 去掉what或what→that　 10. learn→learning

　B 1. 去掉the 2. after→behind 3. stay→stayed 4.√ 5. 去掉第二个to 6. out→up

82. which 83. the 84. returning 85. watched

A 1. a→the 2. visit后加to 3. was→is 4. √5. workshop→workshops　 6. 去掉of

16. 76.On 77.on 78.去掉to 79。Sitting/Seated 80. ∨ 81. land

15. 76. √ 77. got→get 78. Remembering→Remember 79. they→it 80. life→lives

8l. 去掉for 82. any→some 83. clean→cleaning 84. friend前加a 85. comfortable后加with

14. 76. fished→fishing 77. metre→metres 78. 去掉over. 79. like→as 80. to后加the 81. √ 82. received→accepted 83. cups后加of 84. are→were 85. much→many

80. In→To 81. √ 82. sail→sailing 83. for→so/and 84. road→way 85. 去掉 on

13. 76. fond后加 of 77. later→late 78. start→started 79. at→to

84. know→knows 85.usual→usually

79.surprised→surprising 80. √ 81.still→even 82. 去掉it 83.team→teams

12. 76.is后加the 77.match→matches 78. shout→shouting