IfyouliveintheUnitedStates,you’realmost 61 (certain)se...

问题详情：

  If you live in the United States, you’re almost  61  (certain) seen at American crow(乌鸦). Crows range from southern Canada throughout the United States. As  62  adult, this bird is entirely black from bill to tail, except for its brown eyes. These  63  (noise) birds are often recognizable by their special, loud cry, called a caw. There are often mistaken  64   the common raven(渡鸦),but ravens are   65  (large), and they have differently shaped bills and pointed wings and tails.

   American crows often live family groups. Both members of a breeding pair help build the nests, and the female crow usually  66   (lay) four or live eggs in spring or summer. After about five weeks in the nests, the young birds begin learning how to fly and catch prey. Crows sometimes stay near the spot  67   they were born to help raise other young crows.

   Crows will eat almost anything, from insects and small animals such as frogs fruit and nuts. They prefer open areas with access to trees and they can sometimes   68   (find)around vegetable gardens. Crows also frequently live in suburban   69   (neighbor) and in parks. Crows are considered   70   (be)very intelligent birds.

【回答】

61. certainly    62. an   63. noisy   64. for   65. larger

66. lays     67. where    68. be found    69. neighborhoods    70. to be

知识点：语法填空

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