A: Hello, Kate! You look so happy. What happened?

B: Hi, Paul. I've got good news for us!

A: What is it?

B: Our teacher said she ____ take us to go on a school trip tomorrow.

A: Really? Where shall we go?

B: To the lake in the south of our town.

A: Oh, no. That's not a good place for a school trip.

B: Why do you say that?

A: Because the water in the lake ____ terrible. I went there last weekend.

B: I can ____ believe it. It used to be a beautiful place with flowers and grass, and the water in the lake was very ____.

A: But now everything has changed. There is only rubbish ____.

B: How terrible! Let's tell our teacher about it.

A: OK. Let's go.