Conditionals - Gateway b2+

If space tourism ________ around when my grandad was alive, he'd definitely have gone on a flight.

• had been

• was

• were

• have been

It would be illegal if they (a)   (do) experiments on humans, so they are using rats.

If science lessons had been more interesting, I __________ more when I was at school.

• would concentrated

• would be concentrate

• would have concentrated

• had concentrated

If the driving test (a)   (not be) so difficult, there would be more accidents on the roads.

If my brother __________ his final exams, he'll be a doctor next month.

• passes

• passed

• had passed

• would pass

You are at risk of getting yellow fever if you _________ to many parts of Africa.

• travel

• would travel

• will travel

• had travelled

They _________ a breakthrough sooner if a fire in the laboratory hadn't destroyed their experiments.

• would make

• had made

• made

• would have made

Scientists usually (a)   more accurate results if they repeat experiments several times.

I'll write up the results this evening ________ I'm too tired.

• unless

• in case

• as long as

• provided

__________ we moved to the USA, would the salary be similar there?

• Supposing

• Providing

• If only