高考命题点一 具体语境下的时态运用 【例】 Every few years, the coal workers________their lungs X rayed to ensure their health. A. are having B. have C. have had D. had had 思路点拨：句意为：每隔几年，煤炭工人就会做肺部 X射线检查来确保他们的身体健...

时间:2024-11-20 19:56栏目:中学教育