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题库 / Prep2007E2-SC-23
Scientists believe that unlike the males of most species of moth, the male whistling moths of Nambung, Australia, call female moths to them by the use of acoustical signals, but not olfactory ones, and they attract their mates during the day, rather than at night.
by the use of acoustical signals, but not olfactory ones, and they attract
by the use of acoustical signals instead of using olfactory ones, and attracting
by using acoustical signals, not using olfactory ones, and by attracting
using acoustical signals, rather than olfactory ones, and attract
using acoustical signals, but not olfactory ones, and attracting
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A，and they attract 与主句科学家相信并列，并列错误。如果要与第一个从句并列，要加and that they attract
that引导宾语从句时，that能不能省略的问题：宾语从句前有插入成分时不能省略，如：and连接两个或两个以上的宾语从句时，第二个宾语从句的that不能省略；
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