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The reason ____ he explained to us was ____he overslept.

___________ she will go or not doesn’t matter much.

The reason __________ she gave for not finishing the homework is that she was ill.

—Why did he say so?
—Sorry, I don’t understand        he has said means.

     sales of cars up by 30% last year, the traffic in Beijing has become increasingly terrible.

We are living in an age ______ many things are done on computer.

The consequences of our actions are unbelievably complicated and diverse _______ predicting the future is a very difficult business indeed.

________I’m concerned, we are going to take an exam in a month.

It is helpful to put children in a situation _____ they can see themselves differently.

We were going out for a walk ________ it began to rain.