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(10上海)28. 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。31. The church tower which will be open to tourists soon. The work is almost finished. A. has restored B. has been restored C. is restoring D. is being restored答案:D考点:本题考查被动语态。解析:Restore意思为修复,而最后一句表明工程还未完成,因此为正在修复中,答案选D.
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