Read the text and fill in the gaps with the correct word. One word is extra.

Dave: Hi, Tim. What’s up?
Tim: Oh, hi, Dave! What are you doing here?
Dave: Oh, I’ve joined the Eco-helpers club.
Tim: Oh, yeah! I’ve heard about that. Sally collects ... for recycling in the park every Saturday morning, doesn’t she?
Dave: That’s right. She’s been doing that for a month. I’ve been building nesting ... .
Tim: Nesting boxes?
Dave: Well, there aren’t ... trees left in the city for birds to build their nests. If we don’t help them, they will have to leave the city.
Tim: That’s interesting. What else have you ... doing?
Dave: We’ve been ... trees and ... out ponds for a week now that the weather’s good.
Tim: Your club sounds wonderful. I could ... as well, couldn’t I?
Dave: Of course, you could. We really need ... , but you have to see Miss Jackson first. She’ll tell you what to do.
Tim: Sounds great! I’ll join first thing Monday ... .