conditional sentences

I would have visited you before if there _____ quite a lot of people in your house.

• hadn't

• hadn't been

• wouldn't be

• wasn't

If my teacher _____, I would express my feelings

• asks

• asked

• had asked

• was asking

John would take a risk if he _____ his money in that business.

• would invest

• invested

• had invested

• invests

If the tree hadn't been so high, he _____ it up to take his kite down.

• could have climbed

• climb

• is climbing

• climbed

If you press that button what _____?

• would happen

• would have happened

• will happen

• happen

If Martin were here now, he ______ us to solve this difficult problem.

• would help

• helps

• will help

• has helped

If the doorbell rings, ____.

• the dog barks.

• The dog is barking

• the dog would bark.

• the dog barked.

If people drove more carefully, there _______so many accidents on the road.

• would not be

• will not be

• wouldn’t have been

• aren't

If I ______ in London, I could visit British Museum.

• were

• would be

• could be

• have been

What __________ if you saw a pick pocket steal money from someone in the street?

• did you do

• do you do

• will you do

• would you do