The public wants to know when the cleaners _____ to workA.have come back B.will come back C.come back D.shall come back

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Thepublicwantstoknowwhenthecleaners_____toworkA.havecomebackB.willcomebackC.comebackD.shallcomebackT

The public wants to know when the cleaners _____ to workA.have come back B.will come back C.come back D.shall come back
The public wants to know when the cleaners _____ to work
A.have come back B.will come back C.come back D.shall come back

The public wants to know when the cleaners _____ to workA.have come back B.will come back C.come back D.shall come back
B 用一般将来时