When a space shuttle has accomplished its _____, it can be ready for another trip in about two weeks.
| A．venture | B．mission | C．commission | D．responsibility |
They succeeded in killing pests which came from the foreign countries ______ a lot of hard work.
| A．according to | B．thanks to |
| C．in memory of | D．in addition of |
When you meet a new word in reading the English papers, you can guess its meaning but needn’t always ______ the dictionary.
| A．look up | B．attach to |
| C．pay attention to | D．refer to |
The managers discussed the plan that they would like to see ______ the next year.
| A．carried out | B．carrying out |
| C．carry out | D．t o carry out |
______ production up by 60%, the company has had another excellent year.
| A．As | B．For |
C．With | D．Through |
The father as well as his three children ______ skating on the frozen river every Sunday afternoon in winter.
| A．is going | B．go | C．goes | D．are going |