21．The final _____ of the play will take place on Monday.
A．action B．performance C．view D．sight
22．The party, which had been greatly _____, was spoiled by the rude behavior of an uninvited guest.
A．looked forward to B．looked up to
C．look into D．called for
23．He looked around and caught a man ________his hand into the pocket of a passenger．
A．put B．to be putting C．to put D．putting
