21. — Look at the palace over there. How beautiful it is!
— Yes.             .
A. It looks amazing   B. It looks so old    C. It is full of dust    D. It’s really horrible
22.  — Whose Chinese vase is it?
— I have no idea, but I’m pretty sure it _______ the old lady.
A. doesn’t belong to   B. belongs to   C. isn’t belonging to     D. belonged to
23.Look out! Don’t get too close to the house ____roof is under repair.
 A. which             B. whose         C. of which           D. what
24.You’d better not _____ the radio, or you’ll not be able to put it together again.
A. take apart         B. take away      C. take out           D. take in