Jim took ___ one-hour ride just now. What a short time he spent finishing such a long way!—He is ______ experienced rider.

The number of teachers in our college __________greatly increased last term.A number of teachers in this school __________from the countryside.

The boy would have died, _______ on him without delay.

It’s well known that good relationship between two countries __________ the development of mutual culture and economy.

David asked his nephew to ______ his bag while he headed for a drink at the airport.