–__________ will the meeting last? –Less than an hour.
There great changes in our city in the past 10 years.
— Because of the _____ petrol(汽油) price, fewer and fewer people will choose to own a car, I think. — I have the same idea as you.
— David, your mother’s birthday is _____. Let’s think about how to celebrate it. —OK, Dad.
Only two of the students worked the maths problem out correctly. ______ all did it wrong.
I don’t like those big cities which have got ____ people and ____ traffic.