This week,however,crisper has caused more unease than optimism,because of claims by a Chinese scientist that he edited the genomes of twin girls when they were embryos,as part of ivf treatment.这里as介词短语是什么用法?非限制性后置定语?
I took a seat at the end of the hearthstone opposite that towards which my landlord advanced.(呼啸山庄:https://m.ximalaya.com/waiyu/20693653/154509071)请问这句话符合现代语法吗?Which指的是什么?
To my surprise, the game was invented by a middle school student of_______.A. fifteen-year-old B. fifteen C. fifteen-year age D. age of fifteen老师,选项A和C哪里有问题呢?