=>
1. would float -> floats
2. wide -> widely (adv) : rộng rãi
3. staying -> stay ( let sb V)
4. picking up -> being picked up ( bị động )
5. amn't -> aren't I
6.sitting -> to sit ( would like to V)
7. watch -> watching
8. enough old -> old enough ( adj enough to V)
9. isn't that -> isn't it
10. in order not -> in order not to
11. does -> did
12. took ->taken
13. on -> by
14. a -> x
15. the -> a
16. welcome -> welcoming
17. astonished -> astonishing
18. sightsee -> sightseeing
19. a -> the
20. a -> the