摘要: 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.
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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 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 workers their lungs X-rayed to ensure their health.
A.are having B.have C.have had D.had had
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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 |
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