________ is it ? —It’s about 10 minutes’ walk.[ ]

It was some time ________ we realized that we lost the chance forever.

Bruce,how many students are there in your school?—Mmm, about.

Xi’an is very famous _____ Terra Cotta Warriors.[ ]

What do you think about _______dress in the shop window?— Oh, it’s beautiful. Amy will be pleased if she can have it as _______birthday present.