47. Three hundred firemen raced to the hotel after a smoke detector ______ the alarm soon after midnight.
| A．set off | B．set out | C．gave away | D．gave off |
First of all, I hope that we shall never lose _____ heart in face of_____ failure.
| A．the; a | B．the; the | C．不填; 不填 | D．a; 不填 |
—Could you tell me the function of this paragraph from the whole text?
— _____. I didn’t understand what you just said.
A. I beg your pardon B. All right C it’s nothing serious D. Not really
A new branch of the company is going to be open. ____, the decoration of its main store has been finished.
| A．Instead | B．However | C．Therefore | D．Meanwhile |
--- How long ____ in Beijing? --- For just the weekend. I’ll be back for work next Monday morning.
| A．have you stayed | B．are you staying | C．did you stay | D．do you stay |
The young man _____ the car hoping to arrive at the station to meet his girlfriend on time.
| A．gave up | B．sped up | C．turned up | D．picked up |