Tom usually gets up _____ half past six _____ Saturday morning.
A. at, on B. at, in
C. for, in D. in, on
Mr Green is our new teacher this term. He teaches _____ history.
A. we B. our C. ours D. us
We must protect (保护) animals like elephants, because they’re _____.
A. on time B. in danger
C. on vacation D. from China
There are _____ teachers in our school.
A. three hundreds of B. three hundred of
C. three hundred D. three hundreds
When we go to the library, we must be _____ in the library.
A. noisy B. important C. shy D. quiet
What is time? Time is the seconds, _____, hours, days, years shown(显示) in our watches and calendars.
A. minutes B. animals
C. villages D. rules
