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高考英语复习 动词的时态和语态
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
答案：B
考点：本题考查时态。
解析：根据时间状语every few years,可判断本句应为一般现在时，因此答案选B。
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
答案：B
考点：本题考查时态。
解析：根据时间状语every few years,可判断本句应为一般现在时，因此答案选B。
