PDF chapter test TRY NOW

Fill in the blanks with past or past perfect tense of the verb with reference to a sequence of events:
 
1. I __________ one, but they were far too expensive. (past perfect)
   
 
2. I explained about the desk, about how I __________ it. (past perfect)
   
 
3. He __________ all he knew of England from school. (past perfect)