CAN -CAN`T COULD - COULND`T

Question

CAN -CAN`T COULD - COULND`T

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Answer 1

Ответ:

1)cant, can

2)could, couldn't

3)couldn't, could

4)can,can't

5)could, couldn't

6)can, can't

7)couldn't, could

8)can,can't

9)could, couldn't

10)can, can't