If he ………… his wallet at home, he wouldn't have lost it.

• didn't leave

• don't leave

• hadn't left

• leaves

If they ………. earlier, they wouldn't have missed the train.

• leave

• left

• leaves

• leaving

If it ………. tomorrow, we will have a picnic in the park.

• raining

• rained

• rains

• will rain

If we ………. on vacation next week, we will visit Paris.

• go

• will go

• going

• went

If he ………. the answer, he would have told us.

• knows

• know

• knew

• had knew

If it ………. warmer, we would go swimming.

• is

• was

• were

• will be

If it ………. tomorrow, we can have a picnic in the park.

• rains

• will rain

• raining

• rained

If I ………. the answer, I would tell you.

• knew

• knows

• know

• known

If I had more money, I ………. a new car.

• will buy

• buy

• would buy

• bought

If they ………. earlier, they would have caught the bus.

• leave

• left

• leaves

• had left