Polar bears live     on sea ice, which they use as a platform for hunting seals.

First I read the poem to myself and then ________ to the class.

--- It is what parents say and do that really matters in children’s character training.
--- ___________.

He spoke about the country as if he had been there, but ________ he had never.

         I got over from the failure of my entrance examination. And I made up my mind to devote myself to my study again.

When the expression first came into being, people refused （拒绝）to use it but _____ they began to accept it.

—Hi, I hear you’re going to London this summer vacation.                    
—            , I was going to, but now I have changed my plan.

The train stopped ______ at lonely little stations, which resulted in a sleepless night.

_____,I managed to get the game and the pain was worth it in the end.

It’s impossible for ____ few people to finish ____ a lot of work in only two days.