(2014·南昌第二中学高三检测)We must keep our room clean，for dirt and disease go________，you know

Let’s go to a place _______ we can make a round—trip in one day?——What about one _______ we can climb and swim?

I like playing very much.

The guide the students around Zhang Jian’s Former Residence（张骞故居）last month.

Over the last 20 years, the village has changed so much that I can hardly________ it now.[ ]