Only in recent years ______ begun to realize that wild dogs, kept within bounds, often do more good than harm.
As the economy is getting better and better,there are more and more jobs _______.
It is his dishonesty _________ leads to his failure in his struggling for the job.
A quarrel broke out between him and his cousins,which made him_________ them.
—Why are you late today.Mary?—I’m sorry,Mr Li.My bike ________ on the way.
Only when he got on the train _________ that he had left his mobile phone at home.