回归测试是在软件修改后再次运行以前为查找错误而执行程序曾用过的测试用例。

填空题Paul（）（like）his Chinese teacher because she is too strict with him.

填空题Those young trees（）（die）because they couldn’t get enough water.

填空题The Wangs live in a beautiful（）（build）with a big garden.

填空题Old Henry is over eighty but he is still in good（）（healthy）.

填空题I don’t think after-school（）（activity）will take too much time.