在含有since的时间状语从句中的主要分句能用一般过去时和用完成时有什么含义的不同?The annual assembly was held
outside the Chinese mainland for the first time since its establishment in 2018.与主句改成现在完成时有什么具体语义上的不同?
原句是Chomsky’s grammar should show patterns of language change that are independent of the family tree or the pathway tracked through it. Whereas Greenbergian universality predicts strong co-dependencies between particular types of word-order relations.请问这个the pathway tracked thro...
But the radio waves that we use for these purposes microwaves travel in straight lines. 这句话 that 后边是定语修饰 radio wave, 然后 microwaves travel in straight lines 是什么成分,以及这句话的谓语是哪呀?
In the 1970’s consumer activities succeeded in promoting laws that set safety standards for automobiles, children’s clothing and a widely range of household products请问这里哪里错了?
For years, tech employees have worked hours that make silicon valley's workaholics seem pampered.老师好,请问这个hours是和worked搭配组成名词呢(虽然没见过worked)?还是hours是worked的名词状语,然后由hours作that的先行词?
Yet some experts don’t expect a children’s vaccine will be ready by the 2021 school year because of how long trials take, even on the accelerated timeline for Covid-19 vaccines. 黑体字是间接感叹句,还是,名词性关系分句?
...:If the greedy little Gradgrinds grasped at more than this, what was it for good gracious goodness' sake, that the greedy little Gradgrinds grasped it!求指教!老师,请问that从句是指代前面的 it 吗?what was it中what和it哪个是主语呢,这里使用感叹号而不是问号...