--- Whose French book is it?
--- It __________ be Lucy ’s. Look! Her name is on the book!
A、mustA
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-Theyoungmanwhoenteredourfactorylastmonthhasmadesomemistakesthisweek.
-Well._______.
-Couldyoutellme_______?
-Untiltomorrowafternoon.
---Hello,canIspeaktoMr.Green,please?
---I’mafraidnot.He______ameetingnow.
Thankyouforthe_______thatyougavemewhenIfeltEnglishtoodifficulttolearn.
-DidyouhearthatJohnlosthisjob?
-It_______thathehadmadesomeseriousmistakesinhiswork.
