--- Is this your sister’s key, John?--- No, it isn’t. ______ is in the bag.
When it grows ________, it will grow ________ a strong animal.
—________ does John go to school? —He takes the underground.
Mr Wu is one of ________ in our school.
I don’t like eggs ________ milk, ________ I like fish ________ meat.
Kitty’s pencil case is ________ Sandy’s.They’re both very small.