问题
选择题
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
答案:B
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。
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。