题目内容
【题目】-Did Billy and Anna find a way out at last?
-Yes, they _____ a plan and did it.
A. were working out B. worked out
C. are working out D. have worked out
【答案】B
【解析】
试题分析:句意:--比利和安娜最后找到方法了吗?--是的,他们做好了计划并且找到了方法。根据and后的动词did可知,空格处也应该用一般过去时。故选B。
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