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
Every few years, the coal workerstheir lungs X-rayed to ensure their health.A. are having
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解决时间 2021-12-28 19:24
- 提问者网友：绫月
- 2021-12-28 10:35
最佳答案
- 五星知识达人网友：几近狂妄
- 2021-12-28 11:11
A. are having(答案→)B. haveC. have hadD. had had解析：考查时态。根据Every few years可知句子谓语要用一般现在时态。所以选B。
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- 1楼网友：轻熟杀无赦
- 2021-12-28 12:43
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