[单选题]Once we begin__________ these files according to their content and date, our computer network drive will seem less confusing.
A.organize
B.organized
C.organizing
D.organizes

[单选题]Once our chickens started laying eggs, we had such a ______of eggs that we were giving many away to our neighbors.
A.output
B.surplus
C.production
D.plenty

[不定项选择题]资料：We never thought we'd say this, but we'd welcome back some chilly weather. A cool mass of air heads toward the United States from the upper regions of Canada and Alaska this week, according to the National Weather Service. According to the NWS, a mass of cold air will drop from the Arctic regions to Canada and then the upper Midwest next week. Temperatures across the Midwest will drop into the 60s and 70s—a sharp difference from the 80 degree and 90 degree temperatures from recent weeks. And the relatively cooler air may be felt as far East as New York and Washington. The cool breezes may be a welcome relief this time around, but remember the last few times we got hit with Arctic air? Temperatures in cities including Chicago, Cleveland, New York, and Louisville fell into single-digit and negative territory for long stretches during the harsh winter months of early 2014. But we're sure you remember. What’s the temperature when the report was written?
A.About 60s and 70s.
B.Between 60s and 90s.
C.Below 60s.
D.About 80s and 90s.

[单选题]The price of vegetables varies according to the weather.
A.jumps
B.rises
C.falls
D.changes

[单选题]The price of food fluctuates according to the weather.
A.jumps
B.rises
C.falls
D.changes

[单选题]The price of vegetables varies according to the weather.
A.jump
B.rises
C.falls
D.changes

[单选题]How are we to develop new technology if we can’t study current technology to figure out how to______it?
A.improve
B.rest
C.cause
D.conceal

[单选题]We packed up the things we had accumulated(累积)over the lastthree years and left.
A.late
B.recent
C.past
D.final

[单选题]We packed up the things we had accumulated（积累）over the last three years and left.
A.late
B.recent
C.past
D.final

[单选题]Once the application has been registered the court __________cannot be refunded.
A.fee
B.cost
C.fare
D.price

[单选题]I have to go at once.
A.soon
B.immediately
C.now
D.early

[单选题]She cried aloud all at once.
A.for a long time
B.suddenly
C.for no reason
D.quickly

[单选题]One Friday, we were packing to leave for a weekend away__________my daughter hearedcries for help.
A.after
B.while
C.since
D.when

[单选题]If we leave now,we should miss the traffic.
A.direct
B.stop
C.mix
D.avoid