A. come up to                                 B. come to

  C. came to                                      D. came up

18.He (     ) when he recognized the voice at the other end of the phone.

  A. hung up                                      B. hang up

  C. hanging                                      D. hung in

19.(     ) lose all our money, but we almost lost our lives.

  A. Not only we                                B. Not only did we

  C. Not did we only                           D. Only we did not

20.He who makes no mistakes (     ) nothing.

  A. make                                          B. making

  C. makes                                        D. made

Ⅱ . 短文阅读理解。该短文后设有五个多项选择题，请根据短文的内容从四个选项中选择一个最佳答案，并将选项号填在答题纸上相应的位置 ( 本大题共 5 小题，每小题 2 分，共 10 分 )

Ten thousand years ago, when people learned to grow plants and raise animals for food, the population of the earth was very small. There were only about five million people who had to be fed, and each family was able to provide its own food. Later, people began to exchange food for services.

Now the world’s population is close to four billion. There is not enough land for each family to have its own farm. Supplying food to consumers had become what might be the largest industry in the world.