高一英语选择题 求大神解 求原因

高一英语选择题 求大神解 求原因
1}--where have you been all the time?
--l came back at noon and l hve been in this room __
A,since B,afterward C.before D.later

2}_______________is his own decision.
A,When is leavingB.When he leaves C.when does he leave D.leaves

3}.---how about ____we go to the concert after dinner?
---I'd like to ,but I have to help my daughter with her maths.
A.whenB.ifC.whetherD.that

4}___several professional archaeologists devote to the archaeology __ more than all the workers there have done.
A,what,matter B.that.matter C.what,mattersDall,count

5}it is the fact ___he doesn't know his own birthday ____surprises us all.
A.which,whichB.that,whichC.that,that
6}when you left the moon ,____to lock the door.
A.be sure B.to make sure C.make sure you D.make sure of

7}the UFO was seen flying away by many people ____amazing speed.
A,in B.with C.on D.by

8}Archaeology(考古学） is___study of ____civilization by looking at things that remain from the civilization existed.
A.the.a B.a,the C.a,a D.the,the

9}______________________,the two truant-playe had to call their parents for help .
A.because of tired and hungry B.as a result of tired and hungry C.being tiredness and hungiy D.tired and hungry

10}Mr Green stood up in defence of the 16-year old boy,saying that he was not the one___ ?
A.blamed B.to blame Cto be blamde