Final answer:
The verb forms for each sentence are: isn't raining, speaks, is waiting, are you listening, do you listen, flows, is flowing, usually grow, is improving, is staying, stays, am starting, am learning, finish, live, is looking, is staying, is your brother doing, am not enjoying.
Step-by-step explanation:
The correct forms are:
- It isn't raining now.
- She speaks four languages very well.
- Hurry up! Everybody is waiting for you.
- Are you listening to the radio? No, you can turn it off.
- Do you listen to the radio every day? No, just occasionally.
- The River Nile flows into the Mediterranean.
- The river is flowing very fast today - much faster than usual.
- We usually grow vegetables in our garden, but this year we are not growing any.
- I think it is improving slowly.
- She is staying at the Park Hotel. She always stays there when she's in London.
- I am starting to feel tired.
- I am learning. My father is teaching me.
- I normally finish work at five, but this week I am working until six to earn a little more money.
- My parents live in Manchester. Where do your parents live?
- Sonia is looking for a place to live. She is staying with her sister until she finds somewhere.
- What is your brother doing? He's an architect, but he is not working at the moment.
- I usually enjoy parties, but I am not enjoying this one very much.