If all business goes paperless, at least one million tons of paper will be a year．
A． used B． saved
C． copied D． offered
—Dear, what time is the flight to Beijing on Saturday?
—Wait a minute．Let me _______ in the schedule (时刻表)．
A． look at it B． look for it
C． look after it D． look it up
When I got to the bus stop．I missed the early bus and I had to____ the next one．
A． give up B． keep off
C． call off D． wait for
－Why didn’t you buy any bread?
－Sorry, I _____．
A． forget B． forgot
C． remember D． remembered
Great changes _______in Tongren in the past five years．
A． have happened B． have taken place
C． have been happened D． have been taken place
Although many great people ever failed, they never_____ and managed to succeed.
A． set out B． stayed up
C． kept on D． gave up
