Though he lives _______, he never feels ________.
—who is the man over there ? Is it Mr.Wang ? —No, it _____be him .Mr.Wang is much fatter.
---________ we clean the classroom at once? ---No, you________. You ________clean it after school
---Listen! Kate is singing in the classroom. ----It_____be Kate. She has gone to the Library.
—Sorry, I just come here. Ask the old woman, she _______ know something about it. —Thank you all the same.
---Could you please come to the museum with me this afternoon? ---Sorry, I ______ . I have to take a piano lesson at 2 pm.