–A boy was killed by the tiger in the zoo. –He was believed ______ into the cage while feeding the tiger without permission.
Little ________that we were watching his every move, so he seemed to be going his own way in this business.
The field research will take Joan and Paul about five months; it will be a long time _____ we meet them again.
Driving a car is not as difficult as you imagine, if you ____________ the rules.
Our team was ahead during the first half, but we _________ in the last ten minutes.
Xiamen is ___________ most beautiful coast city and I believe I will come for__________ second time.