The air is deadly polluted because some factories don’t __the rules to protect the environment.
A. appreciate B. regard C. honor D. respect
------Is your father a teacher of English in the No.l Middle School?
-------No! But he _________ English there for ten years.
A. has taught B. has been teaching C. taught D. had taught
Your suggestion on how to improve English writing ability is too general. Could you make it more _______?
A. particular B. specific C. special D. relaxing
The annual Christmas party last night was _____success. We sang and danced until it came to ____end at 12∶30.
A．a；an B．a；the C．the；an D．/；an
They talked for about an hour of things and persons _____ they remembered in the school.
A. which B. that C. who D. whom
It was not ______she took off the glasses ________ I realized she was a famous film star.
A. when; that B. until; that C. until; when D. when; until
