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<ul id="sa6ak"></ul> Ithinkthe______(four)lessonisthemostdifficultinthisbook.
Thereare_____studentsinourclass.Thatis19boysand21girls。
What'syour_____fruit?
to，I，put，the，ball，in，the，box，want
_________________________________________
Therearesomanypeopleintheshop.Youmust________yourthings.
