—What is happening outside the window?
—There must be some children ______ games.
A. to play B. plays
C. playing D. is playing
—Tom always feels ______ today.Did he stay up late last night?
—Yes.He didn't go to bed until 11.
A. sleep B. sleepy
C. sleeping D. asleep
—What can we do to ______ bird flu (禽流感) from spreading?
—Try not to buy or eat the chicken that has not been checked.
A. prevent B. cause
C. discover D. protect
My parents getting up early on weekdays.
A. used to B. be used to
C. was used to D. are used to
His family are worried about him because they haven’t _____ letters from him for a long time.
A. accepted B. received
C. written D. collected
It used to be very quiet and ______ ever happened around here.
A. nothing much B. much nothing
C. nothing many D. many nothing