6．Jack and Samantha ____________ for their wedding for a whole week but nothing is really done．
| A．have prepared | B．are prepared |
| C．have been preparing | D．prepared |
_______some people some here for a short break , others have decided to stay forever.
| A．Because | B．If | C．Once | D．While |
_______well in an interview will be an important part of getting a place at university.
| A．Do | B．Doing | C．Done | D．Being done |
The employees（）that they should renew their contracts within a week.
| A． | advise | B． | have advised | C． | are advised | D． | had been advised |
We _______on our project day and night in the past two weeks.
| A．had worked | B．have worked | C．will be working | D．has been advised |
It is important to know about the cultural differences thatcause problems.
| A． | must | B． | dare | C． | need | D． | may |