...）还没有打来过电话。”，所以主句用现在完成时。
It was the first time I'd had visitors since I'd moved to London.
那是我搬到伦敦以后第一次有人来看我。
这里整个句子是以“it was the first time ”做基调，所以since的主从句都过去完成...
The projected was observed by Ada’s supervisor, teacher and mother.多个名词指代同一个人时的表达方式是什么，如本句，supervisor, teacher and mother 指代的同一个人，如何区别名词指代多个人/物还是同一个人/物？
When she was only seven she could carry a piece of shortweighted cheese back to the A & P, threaten the manager with legal action, and come back triumphantly with the full quarter-pound we'd paid for and a few ounces extra thrown in for forgiveness.extra是副词修饰thrown in吗？
...ation (focus) on easy access and easy firing ignores the question of how to develop widespread teaching skills and ensure a strong supply of highly able teachers for schools.这边，填focusing,但是改为定于从句不是A regulation which\ that is f...
句子：In the year of the drought, that little clearing was always packed full of noisy kids with big brown eyes and sticky hands, and their mothers —sinewy, overworked young women with cracked, brown heels.
...s I know how to explain the benefits we can all gain from working together and the problems we, the company and our customers will experience if we don’t.曹老师如何理解as persuasive的意思，“同样的说服力如同我知道的”？
China's rapid technological advances, improved social services suchas education and healthcare, and environmental conservation policieshave all enhanced sustainability.这里面为什么会有形容词rapid修饰形容词technological呢？
老师好！1.She appeared on the cover of the magazine _______ his bravery and hard work during the outbreak. 2.She is looking for safe ways to get outside and exercise _______(由于) the Covid-19 crisis.可以填什么呢？for,since,as后面除了加句子，还可以加短语吗?
He wishes that he had asked her to dance, and that he knew her name.He wished that he had asked her to dance, and that he knew her name.对比这两个虚拟语气晚辈想请教，从句的时态不是肯定是建立在主句的时间之上的吗？为何有时候是站在主句的时间点上，...
He looked like
trash, to train that long and only throw 97 punches the whole fight is crazy.
I'm just glad he didn't get hurt out there.这句话里面to train that long and only throw 97
punches是做什么状语？为什么用动词不定式？the whole fight是主语吧。
VOA:It was only during the administration of president George Bush senior in 1989 that the ceremony became an annual event. After all this turkey represents America's 45 million Turkeys,who will begin making their irreplaceable contribution to our Thanksgiving celebration, so take it easy turkey.先...
These organ transplants are still a decade away, according to experts in the field, and simpler pieces of anatomy will be ready first, starting with skin, muscle, and bone.老师，这个according to 是作用于前句These organ transplants are still a decade away的吗？作什么成分呢？
For much of the city’s 2,000-year history as an administrative and agricultural capital surrounded by good land, Chengdu thrived in relative isolation in China’s hinterlands. 其中“For much of the city’s 2,000-year history as an administrative and agricultural capital surrounded by goo...