The cars are tested for defects before they are sold.
假若要把时间状语从句 before they are sold 改为短语，可以是 before sold 吗？即省略从句的主语（因为它与主句主语相同）和动词are。但老师说给出的答案是 before being sold。请问如果写成 b...
... have diverse ideas. Dreams might be a side effect of memory making. When you sleep, your brain sorts through everything that happened during the day, trying to link new experiences to old memories. As it connects things, your brain turns them into a story, and you get a dream.翻译：我们...
students tend to find that the consequences proves less impressive的句型中 谓语是tend 宾语是to find 那从句是做宾补吗？ 为什么又说谓语是tend to，不是非谓语动词做宾语吗？请帮我分析一下到底谁做宾语以及为什么，谢谢了！
老师好！请看两个句子“Why did you stop and talk to me? I didn’t turn to youand you don’t work here,” he was doubtful.“Why did you stop and talk to me? I didn’t turn to youand you don’t work here.” He was doubtful.请问老师，引文最后的标点，哪个正确？
Many adults may think they are getting enough shut-eye,but in a major sleep study almost 80 percent of respondents admitted to not getting their prescribed amount of nightly rest. 请问老师study后面是不是省略了什么？谢谢
She suffers from a rare disease of brain. His father died of heart disease. patients who are dying from cancer. 请问脑部疾病和心脏病为什一个用of作定语一个用名词作定语？表示死于疾病为何一个用of一个用from？
We won’t start the work until all the preparations ________.A. are being made B. will be made C. have been made D. had been made答案为C。请问这种情况为什么不用现在时呢？A 可以么？现在进行时算作一般现在时，这里现在...
...雪》"The marvellous thing is that it's painless," he said. "That's how you know when it starts."此处的it指“死亡”。请问“That's how you know”是什么意思，感觉其字面意思“这就是你怎么知道的”是不对的，是不是有什么固定用法？
...您好！感觉时态越学越乱，麻烦您帮我梳理一下。～ Do you know Russian？～Yes, I ________ it for two years when I lived in Harbin.A learned B had been learning C was learning D have learned答案是A 我想问为什么要用过去时，可不可以用过去完成？另...