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Grammar. Past Perfect and Used to
1. We (had driven, uset to drive, didn't drive) to work, but now we use public transport.
2. By the evening they (had reached, reached, used to reach) the petrol station.
3. There (hadn't been, didn't use to be, wasn't) so many traffic jams 50 years ago.
4. I came to help Jim with the bottles but he (already went, already used to go, had already gone) to the recycling centre.
5. I (had thrown, used to trow, threw) all the rubbish before my parents came.
6. By the time we came the pupils (didn't use to finish, didn't finish, hadn't finished) cleaning up the park yet.
7. She (didn't used to save, didn't use to save, had saved) electricity when she lived in the city.
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Verified answer
Past Perfect and Used to
1. We used to drive to work, but now we use public transport.
2. By the evening they had reached the petrol station.
3. There didn't use to be so many traffic jams 50 years ago.
4. I came to help Jim with the bottles but he had already gone to the recycling centre.
5. I had thrown all the rubbish before my parents came.
6. By the time we came, the pupils hadn't finished cleaning up the park yet.
7. She didn't use to save electricity when she lived in the city.