Open the brackets using the Past Perfect Tense.
1) I lost the key that he ( give)..... to me.
2) She told me the she ( see )..... to film.
3) I went outside as I ( hear)..... a noise.
4) She picked out the red dress , with she ( not/wear )..... for ages.
5) Mike (not/swimm )..... in the beach before that day.
6) His father was angry because he (not/help)..... him.