Susan started to clean the room; __________Lily was preparing lunch.
A. however B. but C. meanwhile D. when
Had you joined the caht room ten minutes ago, you would have known what we _______about then.
A. had talked B. have talked C. talk D. were talking
It is too bad for someone in such a high _______ in the government to behave badly in public.
A. position B. situation C. profession D. condition
----Why are your hands so dirty?
----I ____________in the garden.
A. was working B. have worked C. worked D. have been working
If I can help ____, I don’t like working late into the night.
A. so B. that C. it D. them
---Why not open the windows to let _____cool air in?
---I’d rather you didn’t. ________air in out town is terribly polluted.
A. a; The B. /; The C. / ;/ D. the; /
