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问题 单复数问题

Mobile phones are a boon for people.The mobile phone is a boon for people. A mobile phone is a boon for people. 请问老师三句话是否都正确吗？如何理解冠词和前面名词复数之间的关系？

问题 句子结构问题

those may not feel trained to lead them  请问这句话中的 trained 和 to lead them 分别是什么成分? 有点懵, trained 是过去分词可以作宾语,那 to lead them 也可以是不定式作宾语,但他们又不可能是宾语+宾补的关系. 请大佬告知一下.

问题 时态的问题

I called Brian, who had called me while I was out. 在不改动词的情况下，我可以把此句变为限定修饰么？意思还是和原来的一样么？ 还有 while后面用过去时对么？不应该用过去完成时么？因为发生在我打电话给Brian之前。

问题 作宾语用us还是ourselves

My husband and I love pets. We decided to buy (    ) a white dog. 空格是否填us 和 ourselves 都可以？

问题 英译汉翻译判断

The U. S. and China both demonstrate the potential of trade to improve the lives of our people.这句话能翻译成“美国和中国都表明了贸易具有改善人民生活的潜能”吗?

问题 unnecessarily 与 not necessarily 的区别

unnecessarily 和 not necessarily 都表示否定吧，它们有什么区别啊！

问题 强调句能否省略引导词that

...向各位老师求教：个人认为该长句有3个谓语动词，2个is和matter（如果matter这里是动词的话），那么意味着这个长句一共由3个句子构成，因此应该出现两个连接词。that算一个连接词，引导后面的句子；个人认为这里的but不是用来...

问题 or连接两个介词短语时介词的省略问题

... go by car or on foot? 我们是坐车还是走路去? Will you pay in cash or by credit card? 您是付现金还是刷卡？ 但是，如果前后使用的是相同的介词，那后面一个介词可以省略吗？比如下面句子中 or 后面的介词可以省略吗？ Do you pr...

问题 all one's life要与一般过去时连用吗

... has been an English teacher all his life(父亲还活着） He lived in Shanghai for 20 years( 现已不住上海了） 以上三句，其决定性作用的是不是因为有all his life这个词组，由此断定父亲已死？ 那么我是否可以说，如果把第三句改为： He ...

问题 feed through 是什么意思

"All right. Here I go." I took off running, my sneakers splashing rainwater from puddles, the hand clutching the kite end of the string held high above my head. It had been so long, so many years since I'd done this, and I wondered if I'd made a spectacle of myself. I let the spool roll in my left h...

问题 Within 10 minutes of the refugee camp中of表什么关系

“You incubate the post-conflict Syrian economy by providing havens not just for people, but for business. Within 10 minutes of the main refugee camp in Jordan, there’s a huge, empty industrial zone. All fully equippedwith infrastructure, just waiting for businesses to go there,” he said.疑问...

问题 句子正误判断(涉及类似sth is easy to do句型)

...ad.B: The book is easy to read it.C: The house is too small for us to live in.D: The house is too small for us to live in it.E: She is not pretty enough for me to dance with.F: She is not pretty enough for me to dance with her.请判断以上句子的正误。动词不定式短语中动词或介词...

问题 The main reason for these 后接表语从句，系动词的单复数问题

The main reason for these is that the thermal conductivity of the modified SC in the Structure II is smaller and its specific heat capacity is larger than those of sand gravel in the Structure I (Table 2).The main reason for these后的系动词是不应该使用are，应为我觉得that后面接了...

问题 sheer,vertical,steep的区别

sheer有垂直的意思，也有陡峭的意思。那请问它与vertical 和steep 分别有什么区别吗?

问题 all except的用法与分析

except 和 all 连用时，属于什么成分？比如：All except him will go 怎么分析这句话成分?