Решение:
- I did my maths homework yesterday.
- Did Susan go to England by plane?
- They visited a farm two weeks ago.
- Jenny and Peggy did not help (or didn't help) their brother.
- The children were not (or weren't) at home last weekend.
- When did you design this wonderful skirt?
- My mother did not crash (or didn't crash) into the van.
- The boys took off the mudguards of their bicycles.
- Did you phone your aunt last week?
- He did not drink (or didn't drink) milk at school.
Ответ: 1. did, 2. Did ... go, 3. visited, 4. did not help / didn't help, 5. were not / weren't, 6. did ... design, 7. did not crash / didn't crash, 8. took off, 9. Did ... phone, 10. did not drink / didn't drink.