____ the working efficiency(工作效率), the boss allows the employees to have a coffee
break.
| A．Improving | B．To improve | C．Having improved | D．Improved |
The only drawback of the voyage was the ______ sea, which made me very seasick.
| A．calm | B．rough | C．patient | D．tough |
At the end of the year 2010, some species of birds ddn’t survive the _____ winter in some European countries.
| A．severe | B．serious | C．mild | D．extreme |
—Hi, I hear you’re going to London this summer vacation.
—, I was going to, but now I have changed my plan.
| A．Previously | B．Recently | C．Absolutely | D．Partly |
I was grateful to Anna for being open and giving me the opportunity to explain and ______ the misunderstanding between us.
| A．handle | B．clarify | C．raise | D．develop |
After the meeting was over, the secretary _____ the new workers to the master’s office.
| A．aimed | B．pointed | C．guided | D．imitated |