—Is Jack on duty today?—It __________ be him. It’s his turn tomorrow.
You_____seeher,butImust.
Thebushadleft,sowe_____walkhome.
Thedoorisstillclosed.He_____thekey.
Mary_____beinLondonbecauseIsawherintownjustnow.
Whenhewasold,MrSmith_____sitforhourswithoutsayinganything.