Tom was disappointed because most of the guests________when he________at the party．
A．left；had arrived
B．left；arrived
C．had left；had arrived
D．had left；arrived
—Why did you miss the English class?
—Because my alarm clock didn’t________．
A．go off
B．put off
C．take off
D．fall off
—Why are you late again?
—I overslept，and________I got to the bus stop，the bus had left．
A．after
B．while
C．by the time
D．at time
He________to play________before he was 11 years old．
A．had learned；piano
B．had learned；the piano
C．has learned；the piano
D．learns；piano
—The advertisement says there will be a great celebration this Sunday．
—Forget it．It’s a________．
A．fool
B．hoax
C．pleasure
D．risk
（2012绵阳）Hurry up！If we miss________last bus，we’ll have to get home by________taxi．
A．a，/
B．the，a
C．the，／
D．a，a
