---Can you tell me what role a mobile phone______ in our daily life?
--Of course.
| A．makes | B．exchanges | C．plays | D．does |
--- Credit cards areuseful when travelling.
—True. They save us the trouble of taking too much cash.
| A．exactly | B．gradually . | C．particularly | D．hardly |
I turned to the headmaster and he promised to do everything _ his power to help. me out.
| A．beyond | B．above | C．under | D．within |
The most important thing for Lucy is to find a proper job,in which she can bring her ability and potential into full play.
| A．that | B．this | C．one | D．the one |
—I missed the bus. What a pity! .
— .There will be another one in five minutes,
| A．Never mind | B．Not at all | C．Take your time | D．No hurry |
We are all for your advice that Johnat home until he makes a full recovery.
| A．remaining | B．remained | C．remains | D．remain |