The Past Simple and the Present Perfect tenses

Open the brackets and write the sentence using the Past Simple or the Present Perfect tenses. They ... (to buy) a car this week.

Open the brackets and write the sentence using the Past Simple or the Present Perfect tenses. We ... (to come) home 20 minutes ago.

Open the brackets and write the sentence using the Past Simple or the Present Perfect tenses. They ... (to learn) this dialogue lately.

Open the brackets and write the sentence using the Past Simple or the Present Perfect tenses. He ... (to do) his homework recently.

Open the brackets and write the sentence using the Past Simple or the Present Perfect tenses. Nicole and Diego ... ( to finish/just) the work.

Open the brackets and write the sentence using the Past Simple or the Present Perfect tenses. He ... (to do) his homework 3 hours ago.

Open the brackets and write the sentence using the Past Simple or the Present Perfect tenses. They ... (to buy) a car last week.

Open the brackets and write the sentence using the Past Simple or the Present Perfect tenses. He ... (to be/never) to Argentina.

Open the brackets and write the sentence using the Past Simple or the Present Perfect tenses. The children ... (to wash up) 15 minutes ago.

Open the brackets and write the sentence using the Past Simple or the Present Perfect tenses. She ... (to clean) her room yesterday.