______________! We will have an exam next week.
| A．Listen up | B．Listen to |
| C．Hear | D．Hear to |
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 |