Tea wasn't introduced into Europe until the early 17th century. And now it has _______ popularin 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？
...表达含义区别，欢迎各位专家老师和网友参与讨论!第1组 there be 存在有句型 2个时态区别(1)There have been some books on the table.(2) There were some books on the table.(3)There have been some books on the table for three days.(4)There were some books on the table for th...
...t guaranteed employment post-graduation. They were simply being practical. Therefore, students should not pick their undergraduate majors based on the careers available at that moment, because thereis no guarantee that those careers will still be available once they graduate.请问文中claim怎么...
The retirement age, which isnow at 62, and re-employment age, 67, are set to be raised, though the exact timing of the changes and by how much have yet to be determined, the country’s Minister of Manpower Josephine Teo said in parliament on Tuesday. 问题一：这里解析把which isnow at...
1."I think the rule _______(work) well in our school now,"
the headmaster said.老师，填works和is working都可以吗？2.Both of them _______(work) for SkyWest, an airline in America
now.老师，填work和are working都可以吗？谢谢！
...why not get some work experience first?（5）Rather than criticizing your husband, why not find out if there’s something wrong?规律二：（2）句、（4）句和（5）句rather than的用法；看过曹老师解答说“rather than后接不定式，表示还没有发生的、潜在的可能...
...ndmother sang. To be sure, it
would not do for the parlor and concert room now-a-days; but then it was the
old kitchen and the old-fashioned grandmother, and the old ballad, in the dear
old times, and we can hardly see to
write for the memory of them, though it is a hand's breadth to the sunset. 摘...
...3，food prices in the United States were very much higher than usual.] Isthereany connection between thesetwo facts ? Yes, more than most people would suspect.以上2句中，都出现了would用法，请教老师：1）这2句中的would是否属于虚拟语气用法？如果是，如何理解...
...ite sport. I often fish for hours without catching anything. But this does not worry me. Some fishermen are unlucky. Instead of catching fish, they catch old boots and rubbish. I am even less lucky. I never catch anything--not even old boots. After having spent whole mornings on the river, I always ...