15.Thedutiesofthejobincludeansweringthephone，makingappointments，and_______.

A.databecollectedB.datacollectedC.collectingdataD.tocollectdata

16.With_______herdothis，shewillhavenodiffeultyinfinishingthejaB.

A.myhelpingB.IhelpC.mehelpingD.Ihelping

17.WhenImetSue，_______.

A.SuewasastudentofStanfordUniversityB.shewasastudentofStanfordUniversity

C.SueisastudentofStanfordUniversityD.sheisastudentofStanfordUniversity

18.Mr.Carpenterhasdone_______businessintheCaribbean.

A.anumberofB.manyC.alotofD.lots

19._______youcannotattendthemeeting，pleaseletusknowassoonaspossible.

A.BecauseB.IfC.ThatD.Will

20.1havetofinisha_______paperthisweekend.

A.two-thousands-wordsB.two-thousands-wordC.two-thousand-wordsD.two-thousand-word