It _____ over 50 years since humans _____ first steps on the moon.A. is; have taken B. has taken; tookC. has taken; take刚才看了老师们之前针对这类问题进行的讲解,感觉A和B都行请问正确答案应该是哪一个?为什么?句子该怎么翻译?
1.
Marty ______ (work) really hard on his book and he thinks he'll have
finished it by Friday.A. is working
B. has been working请问:此题如何选择答项,并解释。谢谢!2.
We have decided that the headmaster _____ (award) the prize to those
gifted students at the meeting tomorro...
小说《Black Cat》里:I deliberated about casting it in the well in the yard -- about packing
it in a box, as if merchandize, with
the usual arrangements, and so getting a porter to take it from the house.请问老师:1 as if merchandize 这是省略句吧?但是省略主语“I”和be好...
一个长难句求翻译:It begins as a childlike interest in the grand spectacle(场面) and exciting event; it grows as a mature interest in the variety and complexity of the drama, the splendid achievements and terrible failures; it ends as deep sense of the mystery of man's life of all...
1//Researchers created a massive databases of faces ,and tested a variety of facial-recognition algorithms as they scaled up in complexity.其中scale up我只查到了scale sth up,scale作vt,这里是什么用法。2//Algorithm that were right 95% of the time when they were dealing with a 13000...
辅导班老师课堂上讲得一道题:
—May I takethis book out?
—No, you _______.
A. can't B. may not C. needn't
老师说选A,我认为选B也对,因为对may的否定回答,用can't、may not、mustn't均可。但老师说只能选A,...
Accordingly, it requires a major act of will to think of price-fixing (the determination of price by the seller) as both “normal” and having a valuable economic function.请问句中的as是什么意思?
Mike doesn't like the job at all, but his father _____ he could be a policeman in the future .A. wants B.hopes C.wishes D.expects标准答案选C. 但是hope与wish都可以加从句,为什么hopes不可以呢?...