---I called you last night, but nobody answered.
---Oh, I usually___off my cellphone by 9:00 p.m.

Millions of pounds’ worth of damage　_____　by a storm which swept across the north of England.

－Miss Jones once _________ music at a local college for ten years and now is an actress.
－No wonder I often hear her sing some pop songs.

The country life _____ he had been used to ______ greatly last year.

I ______ in Paris for many years, but I have never regretted my final decision to move back to China.

____________better ways for digging tunnels__________, the first railway tunnel under the River Thames     was dug in 1884.

What will people die of in 100 years? If you think that is a simple question, you ______ attention to the revolution taking place in biotechnology.

---The “No.1 Document” is designed to help the rural population increase their incomes.
---I believe that peasants’ life _____ better and better.

---Anna, you look so tired and wet all over!
---Well, you know, all morning I _______ my books to my new office on the third floor.

---It was dangerous to throw that bottle out of the window. You could have hurt someone.
---I’m so sorry! I _______ .