I wouldn’t think it _________ to ask him to ________ the club—he’ll only refuse.
| A．worthwhile; join | B．worthwhile; join in | C．worthy; join | D．worthy; join in |
After the introduction of the modern equipment, the factory produced _______ cars as the year before.
| A．twice more | B．as twice as many | C．twice as many | D．twice the amount of |
I was crazy because it _____me two hours to get_____ in the restaurant the other day.
| A．took, served | B．cost, serving | C．took , serving | D．spent, served |
Sam _____ some knowledge of the computer just by watching others working on it.
| A．brought up | B．looked up | C．picked up | D．set up |
I was putting on my shirt ______ my telephone rang.
| A．while | B．when | C． as | D．before |
The alarm_______ when the thieves went into the office.
| A．went away | B．went along | C．went by | D．went off |