21. Quancheng Square is one of _____ largest in China, _____ second to Tiananmen Square.
A. the; the B. the: a C. the; / D. /; the
22. There existed an obvious________ between the accounts of the witnesses, so a judgment was not announced in court.
A. conception B. conflict C. authority D. restriction
23. There are varieties of programs in the TV station to ________ many different types of interests and tastes among the public.
A. adapt to B. attend to C. adjust to D. appeal to
