Make full sentences using the Past Perfect Continuous and the Past Simple.
1 she/wait for/an hour/before/Helen/arrive
> She had been waiting for an hour before Helen arrived.
2 Larry/look for his glasses/for over an hour/ before/he/find them
3 they/play football/over an hour/before/Tom/ score
4 Jane/drive/for over two hours/before/she/ reach/ the Smiths' cottage
5 Mr Smith/work/in the company/for ten years/ before/ he/decide/to leave