By the time my mother came back from work, my sister and I supper and were waiting for her at the table

In the market I found theprices of vegetables were ______ high

_____ are the Olympic Games held—Every four years..

Can Mr. King spare some time for the charity show–If he ___, he will try his best to make it.

你在路上遇到一个你认识的人，你应该说 ____________。