Thank you for the corrections, I really appreciate your help to improve the exercise.
I've changed the question and answer 10 in part 1.
I don't see the mistake in question 4 part 2.
Good exercise, but the answer to question 10 part one, and question 4 part two are wrong.
This is a good exercise! However, 10. in part 1 is wrong; the answers should be: DO my sister & I... Yes, WE DO. Thanks!
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