题目

完形填空 阅读短文，然后从文后每小题的四个选项中选出一个可以填入短文中相应空白处的最佳答案。 One afternoon a boss was riding in his car when he saw two men along the roadside eating grass. He felt  1  and ordered his driver to stop and he got out to ask  2   why. He asked one man, “Why are you eating grass?” “We don’t have any money for  3 . We have to eat grass.” the poor man replied. “Well, then, you can come with me to my house and I’ll  4  you,” the boss said. “But sir, I have a wife and two children with me. They化简:sin (－α)cos (π＋α)tan (2π＋α)＝________