6. supply the past perfect or past simple in the following sentences. 1. when i left the house, (realise) that (forget) my keys. 2. she was sad because she (fail) the test. 3. (not laugh) at the joke because (hear) it before. 4. he (leave) by the time i got there. 5. when i opened the safe, the (disappear). 6 andrew (do) the test before, so he (find) it very easy 7. he (can not) find his watch. he had lost it. 8. when he (arrive) at the station, his train had already left. 9. when she was young, (dance) a lot. 10. when we arrived at the furniture shop, (sell) the table (want).

1 when I left the house, I realised that I had forgotten my keys.
2 she was sad because she had failed the test.
3 I didn't laugh at the joke because I heard it before.
4 He had left by the time I got there .
5 When I opened the safe, they money had disappeared.
6 Andrew had done the test before so he found it very easy.
7 He couldn't find his watch. He had lost it.
8 When he arrived at the station his train had already left.
9 When she was young , she danced a lot.
10 When we arrived at the furniture shop, they had sold the table we wanted.