holmesxgx 发表于 2014-2-12 16:56
谢谢~
关于E选项,OG给的解释是
The verb phrases '' to have begun '' and '' has been expanding '' bo ...
kiwifoodtown 发表于 2014-2-18 09:40
你误解了OG对E选项的解释,OG是想说have begun 和 has been expanding指的都是universe ,所以应该是have ...
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