19、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

18、The employees        that they should renew their contracts within a week.

A．advise            B．have advised           C．are advised             D．had been advised

17、        well in an interview will be an important part of getting a place at university.

A．Do         B．Doing         C．Done           D．Being done

16、       some people some here for a short break , others have decided to stay forever.

A．Because           B．If          C．Once             D．While

15、Tina was hesitation about the job offer as she did not know          the company was an established one.

A．whether          B．what           C．until           D．although

14、       by the growing interest in nature, more and more people enjoy outdoor sports.

A．Influenced                                                 B．Influencing

C．Having influenced                                       D．To be influenced

13、        as an Olympic event, a sport must be played in at least 75 countries on at least 4 continents.

A．To accept         B．Having accepted           C．To be accepted          D．Accepting

12、It was by making great efforts          she caught up with other students.

A．how          B．when             C．what             D．that

11、Never        Lisa would arrive but she turned up at the last minute.

A．did we think                                               B．have we thought

C．we thought                                                D．we have thought

10、There is no obvious evidence         there is life on any other planet in the solar system.

A．which           B．that          C．how          D．where