1. John has already done his homework and he is watching TV now. 2. I have never been to Moscow yet. 3. What films have you seen this week? 4. The accident happened after the new bus driver had driven a few yards. 5.1 didn't know Mirabel. I have never met her. 6. Eugenie couldn't lend Greg her book because she had lost it. 7. By the end of this century the population will has grown to three billion. 8. will Mike has received the letter by next Friday or not? 9. The bell has not gone yet. 10.1 will not have paid the bill by the end of the week.