Sure! Let's complete the sentences with the appropriate linking words or phrases related to cause and effect based on the context you've provided. Here’s how it looks:
1 Cheaper bikes caused sales of bikes to working men and women.
2 The extreme cold led to Amy to lose feeling in her fingers.
3 The bike had a very high front wheel. That's the reason it was dangerous.
4 The race was hard because of the sub-zero temperatures.
5 They collected money, and as a result thousands of bikes were sent to Africa.
6 Matt had to stop and warm them, as a consequence she had to stop and warm them.
Now for the conversation part (assuming some words may be missing or need correction):
Matt: Let's go to the park and skate there.
Jon: No, I don't really want to do that again. We did that yesterday. What a disaster! Let's go to the cinema today.
Matt: Sorry, I can't. I don't have money. We could go to my house. I've got a video game.
Jon: That's a good idea!
Matt: Cool. Come on!
Let me know if you need any more help!