If conditionals
If Laura ________( not book) a seat on the train, she ________( have to) stand.-1st
doesn't book/ will have to
If you _________(put) too many tins into the plastic bag, it _________(break). -1st
put/will break
If Joe ______(have) satellite TV, he _________(be able to watch) the game.-2nd
had/would be able to watch