...d,而486页对照例句2-2用了has happened,没有用happened, 注意1-1和2-1都是should have done结构。 这是为什么?2)上述举例的that分句中,使用不同的时态,对于动作的发生的时间理解,我搞不清,很困惑,例如:1-1:It isn't surprising that ...
Specifically, the authors found that the modern era is unique in the extent to which creatures with larger body sizes are being preferentially targeted for extinction.请问为什么是to which,而不是for which
Most tests require collecting cells by webbing saliva in the mouth and sending it to the company for testing.All tests require a potential candidate with whom to compare DNA.这句话该怎么理解呢?
And all that's best of dark and bright/Meet in her aspect and her eyes: /Thus mellowed to that tender light/Which heaven to gaudy day denies. 老师好!这里的thus mellowed是什么结构?