We hadn't planned to meet.We met ________ chance.

(2013·山东高考)The Smiths are praised ________ the way they bring up their children.

(2012·北京高考)Do you think this shirt is too tight ________ the shoulders?

(2013·新课标全国卷Ⅰ)It was a real race ________ time to get the project done.Luckily, we made it.

(2013·新课标全国卷Ⅱ)A serious study of physics is impossible ________ some knowledge of mathematics.

(2013·安徽，31)If parents have children help with housework, the children will feel needed.________，they will learn to take care of themselves.

(2013·安徽，30)David is________animal fur, so he won't visit anyone who has cats or dogs in the house.

—What do you want to do ________ those old boxes?
—To put things in when I move to the new flat.

His best－known painting that is ________ all praise will be on show in the National Gallery early next month.

Wuhan and Chongqing are among the most important cities in China ________ their size and population.