—Is this        pen?
—Let me see. Oh, it’s not       . It’s Lily’s.

—Are Lily and Kate          good friends?
—Yes, they are. Please look after        .

The dog         played with you just now is        .

—Is this        backpack?
—No,       is on the sofa.

Now whenever you see a group of dolphins in the sea, look for the big old dolphin. You will know him because he has a large white fin(鱼鳍) on         back.

—What do you think of the house?
—It is much more beautiful than        .

This is         room. The twin sisters clean it every day.

I don’t think cooking meals is just         work.

What’s        name?

—Jim, Tom is looking for his English book. Is this        ?
—No, that’s        . I don’t know where his is.