21.－What are they doing over there?
－They are arguing_______each other_______what caused Bird Flu.
A.with; for B.with; about C. to; about D. at; on
22. Go and make yourself look_______before you receive the foreign guests.
A. smart B. brave C. loyal D. wise
23. In that film, she was_______as a hard-working middle-aged woman.
A. cast B. acted C. played D. thought
24.Though he is_______ , he never feels_______.
A.lonely; alone B.lonely; lonely C.alone; lonely D.alone; alone