They know they are contributing very little of real value and all the time they live in fear of being exposed as cheats. being也有加形容词,也有加过去分词,这里的exposed都有形容词和过去分词意思,该怎么区分?
Still, there is a lot of work to be done in the area of transplanting the printed cells. 老师,这里的to be done, 为什么不可以是to do的形式,我的理解是work后面省略了for us ?请老师帮忙看看问题在哪里?
...pportunity to interact with members of the opposite gender. 请问老师to do介词短语是作后置定语还是宾补?
interact with members要看成不及物动词+介词短语作状语还是及物动词(interact
with)+宾语的结构?谢谢老师