B.1. Every year he spends his holidays in the mountains.2. Mum is in the kitchen. She is baking a cake.3. Our children like to play in the garden.
Допускается и Our children like playing in the garden.
Всё зависит от того, что вы хотите сказать. Если то, что дети любят играть именно в этом саду, то нужен первый вариант. Если то, что им в принципе нравится играть в саду - второй.4. Where is Tom? - He is playing in the garden.5. What are you reading now? - I am reading Henry Miller.
Допускается и What do you read now? - I read Henry Miller now.
В этом случае речь будет идти не про конкретно этот момент, а что в принципе человек читает в настоящее время.6. Somebody is knocking the door. Open it please.7. Look what children are doingю - They are drawing.8. He usually speaks so fast. I don't understand him.9. Do you understand what the lector is saying? - Yes, of course I do.10. He always drinks coffee in the morning but now he is drinking tea.C1. What does he usually do in the evening? - She usually reads or listens to the radio.2. Next Sunday our Moscow friends are coming to us.3. Ann is sewing a dress now. She sews all her clothes herself.4. I can't give you this newspaper now. I am reading it.5. Can you see my glasses anywhere? - No, but I am looking for them.6. What do you usually have for breakfast? - I usually eat a sandwich and drink a cup of coffee.7. Why are you walking so fast today? - I am in a hurry because I meet my colleague in half an hour.8. Next Sunday I am going on a business trip.