Over the past 40 years, 29 other Chinese people ____ Mount Qomolangma successfully.

I          on my report next week so I won't be able to meet you any day.   

If a computer crashes，you will lose the file you _____ on if you don’t save it early enough.

—Why not take this road? It’s a short cut. 
— I am afraid we can’t. It _____.

They don’t feel safe in our town at night because it         so dangerous. There’s a robbery every week now.  

— Why are the Woods selling their belongings?
— They          to another city.  

----What a pity! I missed the last concert of the year.
----Oh, not at all. It was so terrible. In fact, I would rather I                         there.

It was not until 3 days later that the boy came back to life and explained to the police what_______ to him.

In the novel, the two cities referred to __________ London and Paris.

All the task __________ ahead of time, so they decided to go on holiday for a week.