Fobes wants to bring them back to his laboratory where he can isolate and identify the genes that give them ---- strong characteristics, so that someday they can be genetically --- into commercial tomatoes . Fobes is just one of the many scientists who ---searching the wilderness to find plants with genes........ 第一个空格 so / such / likely / as 第二个空格 engineer / engineering /engineered /to engineer 第三个空格 is /are 我的疑问是请问第一个空格是从语意是来辨别要填的是as吗 还要第二个空格,是因为被动,所以答案是engineered吗 最後第三个,主格是scientists,所以动词要用复数are吗 以上是我的一些疑问,麻烦有好心的大大可以替我解答一下吗^^ 6 --

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