Chose the right answer:

2. It will save us time and money if we ... the hotel and flight together.

book
booked
will book
had booked

If the guests had come, I … the house.

would clean
would have clean
will clean
must clean

When we ... to the cinema, we ... popcorn.
go; would eat
will go; will eat
will go; eat
go; eat
If it hadn’t rained yesterday, we … on a trip.
will have gone
have gone
would go
would have gone
If I … you, I would apologize to her.

had been
were
was
will be