We have made up our minds that we’ll go to Wales for our summer vacation, but we still have not ___________________ when we’re going.

My sister ____a good chance to go abroad for further study of English. 

—How long have you been going to work on foot?—Since last month when I ________ from a heart attack.

This company was ______ of using misleading advertisements in its promotion of the weight-loss pills

With economy developing at great speed, our city has _____ quite a few changes in recent years.