They are busy _ this week.They _ very tired.Why not _ a rest?A.work,may be,to have B.to work,can be,have C.working,nust be,haveD.with work,will be,having

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Theyarebusy_thisweek.They_verytired.Whynot_arest?A.work,maybe,tohaveB.towork,canbe,haveC.working,nus

They are busy _ this week.They _ very tired.Why not _ a rest?A.work,may be,to have B.to work,can be,have C.working,nust be,haveD.with work,will be,having
They are busy _ this week.They _ very tired.Why not _ a rest?
A.work,may be,to have B.to work,can be,have C.working,nust be,have
D.with work,will be,having

They are busy _ this week.They _ very tired.Why not _ a rest?A.work,may be,to have B.to work,can be,have C.working,nust be,haveD.with work,will be,having
C.working,must be,have
be busy doing sth忙于做某事
must be表肯定推测
why not do sth为什么不?

选C
be busy doing
must表示有把握的推测
have a rest表示休息一下

C

C