Question

8)Paul has already written a letter abroad
9)Pete has just left home
10)The children have already done their homework
11)Mother has just come from the market
(это продолжение задания)
РЕШИТЕ ПОЖАЛУЙСТА!!!!!
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Answer 1

8) paul hasn’t already written a letter abroad
9) peter hasn’t just left home
10) the children haven’t already done their homework
11) mother hasn’t just come from the market.