---________ we clean the classroom at once?---No, you________. You ________clean it after school
There __________ a teacher and seventy—two students in the classroom.
——Is he heavy? ——No, he is a little bit ________.
Cindy often gets to school __________.
——Do you want to have _______ apple? ——Yes. please.
——What does your friend look like? ——_______________.