21.The restaurant was on__ _fire and the people burnt in the fire were taken to___ _ hospital.
A. the; / B. /; / C. the; the D./; the
22．一I’m sorry．That wasn’t of much help．
－Oh,_______ ．As a matter of fact，it was most helpful．
A．sure it was B．it doesn’t matter
C．of course not D．thanks anyway
