That price of music sounds quite familiar．Who ________ the piano upstairs?
A．has played
B．played
C．plays
D．is playing
A computer can only do ________ you have instructed it to do．
A．how
B．after
C．what
D．when
By the time Jack returned home from England, his son．_________ from college．
A．graduated
B．has graduated
C．had been
D．had graduated
_________ a strange plant! I've never seen it before．
A．Which
B．What
C．How
D．Whether
When the news came _________ the war broke out, he decided, to serve in the army．
A．since
B．which
C．that
D．because
Bring the flowers into a warm room _________ they'll soon open．
A．or
B．and
C．but
D．for
_________ around the fire, the tourists danced with the local people．
A．Gather
B．To gather
C．Gathering
D．To be gathering
He had no sooner finished his speech _________ the students started cheering．
B．as
C．when
D．than
I'll go to the library as soon as I finish what I ________
A．was doing
B．am doing
C．have done
D．had been doing
The exam results will be _________ on Friday afternoon．
A．put down
B．put off
C．put up
D．put away