21. The disability makes everyday life difficult and ________ society should treat ________ disabled with dignity and respect.
A. the; the B. /; the C. a; a D. the; /
22. He reached the station _____ only _____ that the train had just left.
A. tired; learned B. tiring; learning C. to tire; to learn D. tired; to learn
23. ---Ken, why do you look so tired?
---I _______ myself ______ the climate since I came here.
A. hadn’t adapted; to B. haven’t adapted; to C. don’t adapt; from D. didn’t adapt; from
