It seems that I have seen this man somewhere before, but now I can’t remember    I came across him.

The man remained __________ he was and waited for his wife who was shopping in the market.

He was very rude to the Customs officer, _____ of course made things even worse.

Scientists still wonder ______ cloning will help or harm us and _____ it is leading us.

Then came the disturbing news ______ Dolly had become seriously ill.

The way ______ he did it was different from _______ we were used to.

—Which seat shall I take?
—Please take ______ seat you like.

--What is that building?
--____________ the students have their dance classes.

The thought ______ he might fail in the exam worried him a lot.

To find out _______ young people think about the future of urban life, a teacher in the US. asked his students to think ______ they would run a city of 50,000 people in 2025.