Sue: What's the weather like today? I'm wondering if it is going to rain this afternoon. Billy: So what? Sue: The football match! It's scheduled at 3 p.m., but the fog! You can only see a short distance. Billy: But don't you see the wind's beginning to lift it up? I bet it'll be fine this afternoon. Sue: Don't be so sure. Billy: You've heard the weather forcast this morning, haven't you? Sue: What did it say? Billy: It said it's going to be foggy in the morning and clear in the afternoon, and the highest will be 18 degrees centigrade, the lowest 8 degrees. Sue: But the report isn't always accurate. Billy: And you always worry too much.