Задайте вопросы к предложениям She has read this book. – Has she read this book? 1. They have already used new technology

1. Have they already used new technology in their work? 2. Will the technician have installed the new equipment in our laboratory by the beginning of the new year? 3.Have rapid changes taken place in science and technology these few years? 4. Have they have nver been late for their classes? 5. Had he sent the telegram before they came?