Question

根据所给的中文提示完成下列句子,每空一词。
1. 这是我第一次遇到这么难的一个问题.
  This is the first time that I _____ ______ ______ _____ ______ _______ problem.
2. 那位老教授被公认是物理学方面的权威人士.
The old professor ____ ___________ _____ ____ ______ _________  in physics.
3. 我认为人与自然界和谐相处是重要的.(形式宾语it )
   I ________ _____ ___________ for humans _____ _____ _____ _________  ________ nature.
4. 我们一到达车站, 火车就进站了.   (倒装句)
   ________ _______ we _________ the railway station _______ the train pulled in.
5. 显而易见,玛丽尽力要使我们相信她是诚实的. (形式主语it )
   _____ ____ _________ ______ Mary is making great efforts ______ ________ _____ _______ 
  her honesty.

Answer 1

1. have come across such a difficult/have met with so difficult a     
2. is acknowledged/recognized to be an authority
3. find/think/consider it important, to live in harmony with       
4. Hardly/Scarcely had …reached…when… 
5. It is apparent/obvious that …