If the new arrangement doesn’t _____, we’ll go back to the old one.

The time is not far away when mobile phones _____ widespread in China’s vast country –side. 

According to the expert, most animals will stay here, but ninety percent of the cattle ________ the nearby preservation area in the coming week.

—Hi, Mr. Smith. Which department do you work in?—I am in the Marketing Department now, but I ________ in the Sales Department before long.

–Excuse me, Madame. Is this plane __________ take off soon?–Oh, yes. In five minutes.