A Write Yes or No to answer the questions about each sentence

A Write Yes or No to answer the questions about each sentence.
1
If Carl doesn't come to the party, I'll be really upset.
Is it possible that Carl won't come to the party?.
If my neighbour became prime minister, he'd give everyone a million euros.
Is it likely that the neighbour will become prime minister?
Is it possible that the neighbour will become prime minister?
If Helen weren't here, I don't know what we'd do.
Is Helen here now?
2
3
7
4
5
6
If Tarek had had enough money, he'd have bought a car.
Did Tarek have enough money?.
Did he buy a car?
If Debbie hadn't gone to the UK, she wouldn't have met Will.
Did Debbie go to the UK?
Did she meet Will?
If the police had investigated the case thoroughly, they wouldn't have arrested Ke
Did the police investigate the case thoroughly?.
Did they arrest Keren?
Had she not gone to university, she might not have started her own business.
Did she go to university?
Did she start her own business?