Question

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1.if cars wont udse petrol, they will use alternative sources of energy.
2.cars wont polluted the environment if they use solar power or natural gas.
3. if cars of the future use water as fuel people save a lot money on petrol
4. people will buy these new cars if they be inexpensive
5. if scientist invent flying vehicles there wont are any more traffic jams

Answer 1

1. If cars don't use petrol, they will use alternative sources of energy.
2. Cars won't pollute the environment if they use solar power or natural gas.
3. If cars of the future use water as fuel people will save a lot of money on petrol.
4. People will buy these new cars if they are expensive.
5. If scientist invents flying vehicles there won't be any more traffic jams.