Find the mistake, correct it and explain why.
1. The train will leave at 11:45.
2. We have dinner at a nice restaurant on Saturday, but we haven't booked a table yet.
3. My ski instructor believes it is going to snow in the mountains tomorrow evening.
4. On Sunday at 8 o'clock I meet my friend.
5. They will fly to London on Friday evening at 8:15.
6. Wait! I am going to drive you to the station.
7. The English lesson is starting at 8:45.
8. I see my sister in April.
9. Look at the clouds - it will rain in a few minutes.
10. Listen! There's someone at the door. I am opening the door for you.