Samantha translated/has translated the article. 2) Samantha translated/has translated the article yesterday. 3) We just planned/have just planned our journey. 4) We planned/have planned our journey last Sunday. 5) They took/have taken the baby to the doctor. 6) They took/have taken the baby to the doctor half an hour ago. 7) Henry learned/has learned to ride a bike when he was six. 8) Mary saw/has seen you in the park two hours ago. 9) The bus arrived/has arrived at five o’clock. 10) We bought/have bought the tickets and went to the platform.
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