Second: if all ou cars used vegetable oil,we wouldnt produce so much CO2. If I were you I would study English by all means. If people knew their future they would make fewer mistakes. third:If it had not rained last night we would have visited our friends
If I had known his address I would have written him at once
If we had bought that house, we would have had to rebuild the kitchen
if all ou cars used vegetable oil,we wouldnt produce so much CO2.
If I were you I would study English by all means.
If people knew their future they would make fewer mistakes.
third:If it had not rained last night we would have visited our friends
If I had known his address I would have written him at once
If we had bought that house, we would have had to rebuild the kitchen