Jack＇s train _________ at 50＇clock next afternoon, let＇s go to see him off.

Seldom ________ his wife punishes her children for speaking out their own ideas freely.

Scientists should be kept _________ of the latest developments in their research areas.

________ writing a letter to the manager, he decided to talk to him in person.

Time _________ very fast and a new year will begin soon.

________ the final examination is over , we can go outside for a picnic.

My father believes that interest, as well as prospects, ________ important when one looks for a job.

—I cannot find Tom anywhere. —He _______ have been off long. I heard him make a call just now.

It is necessary that everyone _________ a copy of this book.

We are happy at the good news _________ Mr.Black has been awarded the Best Manager.

____________ in the company for three years, Mark has become experienced in business negotiations.