...ctic, just as big and tall as they are today.请问原句是由非限制性定语从句“Long, long ago the redwood grew in the Arctic, which were just as big and tall as they are today.” 演变而来的吗?这部分“just as big and tall as they are today”是形容词短语作非限制性...
...些表时间的by短语,并不是必须要用完成时啊,比如By the time we got to the third floor, my Dad was still complaining.By the time we got home we were tired and hungry.By this time next week we'll be in New York.请问专家老师,B选项to be extending在语法上是不是也...