The demand for airplane mechanics is expected to grow about ten percent a year in the next decade, largely because new federal rules calling for major modifications to order planes and because the air-lines are adding hundreds of new jets. A. new federal rules calling for major modifications to older planes B. new federal rules, which call for major modifications to older planes C. new federal rules call for major modifications to older planes D. major modifications to older planes called for by new federal rules E. major modifications to older planes are called for according to new federal rules
书上说because引导的原因状语从句 后面要有完整的主谓结果 所以ABD不选 但是我想问 D中的called 是过去分词 而不是过去式 那E中 are called 不也是过去分词吗？难道是过去式？求大神指教
大神 顺便就再问一个问题吧 嘿嘿 在The program for modernizing the steel mill, which can, it is hoped, be completed in the late 1980’s and cost approximately 51 million dollars.中 书上说 这句话没有谓语 我的理解是说 be completed 和cost 是不是并列谓语 但是他在从句中 所以主句就没有谓语了 如果我的看法是对的 那是不是说 从句和主句中都要有谓语 或者说 主句必须有谓语 从句可有可没有 麻烦大神了。。。
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发表于 2012-11-12 15:09:26
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