问几题英语单选,求详解,

问几题英语单选,求详解,
问几题英语单选,求详解,
1.-How long do you think it'll be____I can go back to work?
-Well,you'll be feeling much better by next weekend.
A.before B.when C.until D.that
2.We hope the building project____will be completed as soon as possible because a lot of citizens are complaining about the noise.
A.to be carried B.carried out C.being carried out D.carrying out
3.Nobody but doctors or nurses and those____by Dr.Hu____to enter the patient's room.
A.inviter;is allowed B.are invited;areallowed C.being invited;allowed D.invited;are allowed
4.Never in my wildest dreams____these people are living in such poor conditions.
A.I could imagine B.could Imagine C.I couldn't imagine D.couldn't I imagine
5.____that they may eventually reduce the amount of labor needed on construction sies by 90 percent.
A.Such construction robots are clever B.So clever the construction robots are C.Such clever constraction robots are D.So clever are construction robots