Tea wasn't introduced into Europe until the early 17th century. And now it has _______ popular in Europe and America.这道题给的答案是become,请问可不可以用been呢?如果不行,为什么呢?
...n be transported from long distances and stored until we need it, first in the supermarket, and then at home.这句话里的we can be transported的被动语态为什么要用在we上啊?不是应该用在packaged or canned food上吗?
Greater demands were being placed on the police by growing violence and left and right-wing extremism. 不断增加的暴行和左翼右翼极端主义使得需要更多警力。老师:您好!这句话我没理解(1)为啥这里要用were being placed on 这个时态(2)我没理解这个...
...国原则不动摇英文翻译:we will never waiver in our commitment to the one China principal请问:这里waiver in 是否为放弃的意思,百度 waiver 这个单词结果是名词词性,没有 waiver in 这样的用法,waiver 也不是动词,难道翻译错了?