PAST SIMPLE OR PAST PERFECT

WHen I reached had reached reachid( reached, had reached, reachid ) home, the children had gone already went already went had already gone( had gone already, went, already went, had already gone ) to bed

Some students had told telled told( had told, telled, told ) us about the jobs they hadn't done did had done( hadn't done, did, had done ) before

AFter I had studied studied didn't study( had studied, studied, didn't study ) English for a month, I leaved left had left( leaved, left, had left ) school. I was ready to pass a test. Then, I sat had sat did sit( sat, had sat, did sit ) the exam which I had already prepared already prepared had prepared already( had already prepared, already prepared, had prepared already ) and I had succeeded succeeded did succeed( had succeeded, succeeded, did succeed ).

When Mary had looked looked hand't looked( had looked, looked, hand't looked ) at ther bag she noticed had noticed did notice( noticed, had noticed, did notice ) she had forgot forgot had forgotten( had forgot, forgot, had forgotten ) her wallet. At that moment she thought is thought had thought think( thought, is thought, had thought, think ) she left had left leaved( left, had left, leaved ) it at a restaurant an hour ago. After that, she driven drove had driven( driven, drove, had driven ) to the restaurant and found had found finded( found, had found, finded ) it.