1.You look sad. What happened / has happened?2. My watch has / is gone. Who took / has taken it away?3. My cake is gone. Tom ate it / Tom has eaten it.4. The window is broken. Who broke / has broken it?就这些句子的时态选择，学生我很是纠结，总是混沌，盼望专家可以为学...
I knew the child would be well looked after in the kindergarten.老师：我对这个句子是这样分析和理解的，不知是否正确：(1) 这个句子是一句宾语从句，省略了that，对吗？原句应该是 I knew (that) the child would be well looked after in the kindergarten. ...
在高中英语人教版必修一第五单元(Unit 5) ELIAS’S STORY（伊莱亚斯的故事）中有这样一句：I had to leave because my family could not continue to pay the school fees and the bus fare. 我不得不辍学，因为我的家庭无法继续支付学费和交通费。请问，这...
end up with 与 end up as 的区别，end up with 后接的宾语为结果，如 the party ended up with a song. 结果为主语的一部分。那么 end up as 呢？如：The meat ended up as dog food. 这不也是宾语为主语的一部分么？也说得通啊，请讲解...
这个 iron 怎么讲？原句：Even a telescope in arbit round the earth,like the very successful Hubble telescope would not be suitable because of the dust particles iron solar system.难道 dust particles iron 是一个天文学的粒子词？iron 不是铁的意思吗!
In the early days, too, longlines would have been more saturated with fish. Some individuals would therefore not have been caught, since no baited hooks would have been available to trap them, leading to an underestimate of fish stocks in the past.请问：如何理解句中的三个 would (not) hav...
Xintong Tiandi Technology applied for the trademark in 2007; the application made in China by Apple, which makes the iPhone, was not approved until 2013. 请问：(1) which 引导的定语从句的先行词是？(2) 后面一句的主句是 the application was not approved 吗？
知道 be about to 能表示突然XXX。那这句呢？He was leaving / be going to leave when it began to snow.这句能不能说突然下雪，还是说在开始下雪时离开呢？？？此外能不能说 Yesterday, he was going to leave?
1. —You can't smoke here.—Sorry, I _____ the sign.A.don't see B.didn't see C.haven't seen D.won't see问题：B与C到底什么区别？2. I can't find my wallet anywhere. I am sure I ______ it.A.lost &n...