—We must thank you for taking the trouble to cook us a meal.
—________.
| A．With pleasure | B．It doesn't matter |
| C．It was no trouble at all | D．By all means |
_______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 |