Oneday,MrGreenaskedMrsGreen______(go)shoppingforhim.
Therearesomanypeopleintheshop.Youmust________yourthings.
Theofficebuilding_____theclassrooms
Theman_______thephotoismyfather.
Acartravelsatarateof50milesperhour.Howlongwillittaketotravel300miles?
me(主格)__________
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