you go, you’ll find people working hard to rebuild their city.

I would appreciate ____ if you can keep an eye on my dog while I am away.

There is ____ Mr. Smith at the door who wants to speak to you.?

Always read the __________ on the bottle carefully and take the right amount of medicine.

      of the three students can repair your computer. They are all experts.

Mr.Smith is trying to hire a new secretary，      who can both type and drive.

The old couple preferred a flat in a small town to ______ in so large a city as Chongqing．

The wealth of the richest province is about 12 times 　　　　 of the poorest.

Nine in ten parents said there were significant differences in their approach to educating their children compared with ______ of their parents．
A．those       B one     C．both               D．that

—The exam was too difficult, wasn’t it?
—Yes, I don’t think ______ could pass it.