:一、单选题。（每题0.5分，共20分）
1、When I her
in the hall, she was playing the piano.
A．see B．saw C．will
see D．am seeing
2、I’ll go
with you as soon as I my
work.
A．will
finish B．finished C．finish D．would
finish
3、He will do better in
English if he harder.
A．will work B．works C．working D．work
4、Since he came here
last year, we happy.
A．are B．have
been C．had
been D．were
