Задание простое! Составьте 10 пар предложений: 5 Present Perfect + по одному вопросу к каждому из них, и так же 5 Past Perfect + по одному вопросу

1.When I came in the lecture had already started. Had the lecture started when I came in?
2. They had already translated this text when the bell rang. Had they translated this text when the bell rang?
3.When I came he hadnt left yet. Hadnt he left when I came?
4.When we came to the airport, the plane had already landed.  Had the plane landed when we came to the airport?
5.He suddenly understood that he had travelled in the wrong direction. Had he travelled in the wrong direction?

1) You have already sung merry songs at our Music lesson. Have you already sung merry songs at our Music lesson?
2) My friend and I have been watching educational film at our lessons for 20minutes. Have my friend and I watched educational film at our lessons?. 
3) We havent relaxed at the breaks between our lessons. Havent we relaxed at the breaks between our lessons. 
4) They havent learnt a poem by heart at our Literature lesson yet. Havent they learnt a poem by heart at our Literature lesson?
5) We have already writtentests. Have we writtentests yet?