過去かこ問題もんだい集しゅう

kako mondaishū

1. Not a past problem collection.; Not past practice problems.

1. Was a past problem collection.

1. Past problem sets with/for

1. Past problem collection's; Past question set's

1. It is not a past problem collection.; It's not a collection of past problems.

1. It's not a past problem collection.; It isn't a collection of past problems.

1. Was a past problem collection.; Was a collection of past problems.

1. Past problem collection.; Past exam compilation.

1. It is not a past problem collection.; It isn't a collection of past problems.

1. Wasn't a past problem set.; Wasn't a collection of past problems.

1. Probably a past problem collection.

1. Was not a past problem collection.; Was not a collection of past problems.

1. Wasn't a past problem set.; Wasn't a collection of past problems.

1. Probably past problem sets.; Likely a collection of past problems.

1. Was not a past problem collection.; Was not a collection of past problems.

1. If it were a past problem collection; If it had been a past problem collection

1. If it were a past problem collection; If it is a past problem collection

1. If/when past problem sets