Choose the correct form of the verbs.

1. Scientists are working on new crops that will help to feed us all. (We use "will" for general predictions). 2. I can't meet you tomorrow. I'm going to help my brother paint his bedroom. (An intention/plan already decided). 3. This new bike will save me lots of money on bus fares. (A prediction based on opinion). 4. I've got a headache now but I think I'll feel OK when I get outdoors. (A prediction with "think"). 5. Please hurry up, the bus is going to leave any minute. (A prediction based on something we can see, e.g., the bus engine starting). 6. I must get another pen. This one is going to run out of ink in a minute. (A prediction based on evidence - the pen is running low). 7. Some people say that air fares will be much more expensive in the future. (A general prediction). 8. We don't have much food at home. I think I'll go to the shops this afternoon. (A decision made at the moment of speaking, often with "think").