I think zoos provide clean and safe places endangered animals to live in.[ ]

_____will you finish doing the work?—In a few weeks.[ ]

Sorry, Jane. I took your school bag by _____.— It doesn’t matter.[ ]

Have you been to your hometown this year?— Yes, and it has changed a lot ________.

We are proud that the 2008 Olympics Games was held in Beijing.—______.