Of the making of good books there is no end; neither ______ any end to their influence man’s lives.

I failed in the final examination last term and only then_____the importance of studies.

The old couple have been married for 40 years and never once_____with each other.

---Did Linda see the traffic accident?
---No, no sooner _____impossible now does seem possible. 

Never in my wildest dreams_____these people are living in such poor conditions．

Had I known her name，___________ .

_______，I have never seen anyone who's as capable as John.

So difficult _____it to live in an English-speaking country that I determined to learn English well. 

So ____ that no fish can live in it.   

---David has made great progress recently.
---_____,  and  ______.