Boboften____hismotherwiththehouseworkonSundays.
---Hello,canIspeaktoMr.Green,please?
---I’mafraidnot.He______ameetingnow.
-DidyouhearthatJohnlosthisjob?
-It_______thathehadmadesomeseriousmistakesinhiswork.
---Iwilltakeanimportanttesttomorrow.
---Oh,really?________!
Throughout_______history,Englishlanguagehasgonethroughmanychanges.