What he said just now_______me of that American professor.
A.mentioned B.informed C.reminded D.memorized
When we were young, every evening my brother and I____ stay at home waiting for our mother.
A. would B. might C. should D. could
We arranged to meet at 8:00, but she never ______.
A. turned down B. turned off C. turned over D. turned up
Missing the flight means _______ for another three hours.
A. waiting B. to wait C. wait D. to be waiting
After I had finished eating, he advise me ______ immediately.
A. set off B. set aside C. set down D. set about
-----This returned Chinese scholar has become one of the top experts in this field.
-----Yes, I know him very well. He _____ in Africa with wild animals for eight years.
A. is working B. had worked C. worked D. has been working