—Imagine you are outside when earthquake es. What should you do?
— Go to open space away from buildings or trees.
A. the; the
B. the; an
C. an; the
D. an; an
网友回答
A. the; the
B. the; an
C. an; the
(答案→)D. an; an
解析：考查冠词。第一空用an earthquake表示的地震一类事物；第二空是也是泛指远离建筑物或者树木的空地。故D项正确。句意—想象当地震发生的时候，你正在外面。你该做什么？—到远离建筑或者大树的空地上去。故D正确。