题目内容
(2010·辽宁东北育才学校高三第一次模拟) 6、Tom often has to be called several times ______ he comes downstairs for dinner.
A. before B. until C. when D. then
A
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题目内容
(2010·辽宁东北育才学校高三第一次模拟) 6、Tom often has to be called several times ______ he comes downstairs for dinner.
A. before B. until C. when D. then
A