By the early 1940s, tractor design had progressed to the stage where a hydraulic lift system had been developed, as had the power take-off shaft used to drive trailed implements such as a self-binder or a manure spreader.as 直接接动词，as 和 had 之间省略的主语是什么？as 在这里...
A huge snowstorm hit on
February 1. A musher named Kaasen had to brave this storm. At one point, huge
piles of snow blocked his way. He had to leave the trail（雪橇痕迹）to get around
them. Conditions were so bad that it was impossible for him to find the trail again.
The only hope was Balto, ...
...oy with a thin, pale face; a skinny body in faded jeans; and big eyes that had looked and searched for a long time and then had become veiled. 老师这句我的理解是：1. 第一个 a litte boy是主语，kept 是谓语，walking是宾语。2. 教材上说，第二个a little b...
With the publication of famous Leather-stocking Tales, the first of which were The Pioneer, the second The Last of the Mohicans, Cooper established his reputation as the first major American novelist.请问：句中的 were 可以改为 was 吗？
...ame truck by was the sheer volume of both
observation and investigation he had done in many different sports and i felt
persuaded that what he had to say would be of real intrest.1.EG中by后面的was是定语从句中的be动词，从句省略了that本来应该紧跟truck，这样理解是否有...
...at a past hope, expectation, intention, desire, etc, was not
realized.1 We had hoped that you would be able to
visit us.2 I had meant/intended to call on you, but
was prevented from doing so.3 She had thought of paying us a visit but
the bad weather made her change her plans.4 I hadn't expected that...
...nd, which she associated with abundant Thanksgiving meals that she claimed
had "a deep moral influence." 请问…that she claimed had …, 这里应该是双重定语从句，为什么不省略做宾语的that, 却省略做主语的 (that) had…
_______ need for new schools following the Second WORLD WAR that provided the sustained thrust for the architectual program in Columbus, Indiana.A. Since the B. To be the C. The D. It wa...
... Atlantic, huge iceberg was suddenly spotted by a lookout. After the
alarm had been given, the great ship turned sharply to avoid a direct
collision. The Titanic turned just in time, narrowly missing the immense walk
of ice which rose over 100 feet out of the water beside her. Suddenly, there
was a ...
...When
he grew blind he would sit hour after hour in those two rooms that he had painted,
looking at his works with sightless eyes, and seeing, perhaps, more than he had
ever seen in his life before. Ata told me that he never complained of his fate,
he never lost courage. To the end his mind remained ...
1.He said we had met 2 weeks before.2.We had met 2 weeks before.3.It had been fine the week before.请教老师2 weeks before 与 the week before 都是过去的一段时间，为什么第二句不对，第三句对呢？
1、She
felt the urge to ask her what had happened. 请问老师to ask her what had
happened作urge的定语吗？what
had happened是作宾语从句吗？2、Her
friends belonged to what were deemed as “ACGer”.what were deemed as “ACGer”作to的宾语吗？to作什么成分呢？what引导...
...止”，不能用于表推测？ 2.No one else could have
done it – it had to be Neville.If Bley was aboard, he had
to have heard me.They have to have seen her
rocket burning as she makes her landing approach, coming in ass-backward. have to表示对过去的推测时，以下三种形式我搞...