I’ll never forget the days ____ I learned hard in my senior high school, ____ changed my whole life[ ]

下列各句中表达得体的一项是( )

He stood there for seemed a long time, wondering he was going in the direction.

Congratulations to you on making such greatprogress!—Thanks, but I would do better ________ I was givenmore time.

Children are _____ to meet with setbacks (挫折) as they grow up, so their parents don’t have to worry about it.[ ]