Five minutes earlier, and we______the last bus.

—Can I pay the bill by check?  —Sorry, sir. But it is the management rule of our hotel that payment ____ be made in cash. 

There is a possibility that these hens could be frightened and lay fewer eggs       a sudden loud noise.

I can’t find my English book. I must ___ it at home this morning.

It’s said that there are plenty of hotels in that town. There ______ be any difficulty for you to find somewhere to stay.