题目内容：

More and more people around the world are taking a look at urban farming. It can make our food as ______ as possible. By growing what we ______ near where we live, we decrease the “food miles” linked with long-distance ______. We also get the freshest ______.

Growing fruits and vegetables in cities will ______ the community (社区) greatly. ______ can earn extra income by ______ excessive (多余的) produce at community events and farmers’ markets. As such markets grow, they may ______ full-time staff from the community. Thus more job opportunities will be ______.

Another benefit of urban farming is that it can make our cities ______. It will add plants, bring fresh air, and ______ shading. It can help raise people’s awareness about the ______. With more rooftops and yard gardens, local people would have more peaceful places for ______. What’s more, a greener city will ______ tourists.

However, there exist some ______. For example, land in cities is often expensive. If more urban gardens are ______, the rents and house prices will be raised. Urban soils are often loaded with poisons. This requires soil improvement ______ planting can be done ______. Narrow space in cities can ______ the size of a farm. And getting enough water and sunlight can be a(n) ______ task. Considering all these problems, it seems that we still have a long way to go.

1.A. local    B. delicious    C. simple    D. healthy

2.A. bring    B. need    C. like    D. have

3.A. lines    B. calls    C. arrangement    D. transportation

4.A. material    B. evidence    C. air    D. produce

5.A. enlarge    B. protect    C. benefit    D. unite

6.A. Customers    B. Porters    C. Growers    D. Cleaners

7.A. collecting    B. showing    C. returning    D. selling

8.A. hire    B. help    C. guide    D. pay

9.A. missed    B. provided    C. ruined    D. taken

10.A. larger    B. greener    C. busier    D. quieter

11.A. use    B. allow    C. increase    D. cover

12.A. diet    B. technology    C. environment    D. disease

13.A. communication    B. retirement    C. competition    D. relaxation

14.A. attract    B. avoid    C. affect    D. accept

15.A. difficulties    B. losses    C. sufferings    D. doubts

16.A. tidied    B. created    C. improved    D. designed

17.A. since    B. unless    C. when    D. before

18.A. safely    B. gradually    C. slowly    D. lately

19.A. reach    B. limit    C. vary    D. match

20.A. pleasant    B. dangerous    C. huge    D. immediate