1.He smiled. He (to hear) that explanation before.2. The taxi (to hit) him as he (to cross) the street.3. When they (to come)? - They (not to arrive) yet. They (to phone) an hour ago and (to promise) to be in two hours.4. They (to stay) in my favourite hotel when they (to be) in Madrid.5. We (to go) to the opera at least six times since last winter.6. Charles Dickens (to write) a lot of novels.7. She (to go) to her bedroom on the second floor, and she (to feel) so tired, that she (to fall) asleep soon after she (to lie) down. She (to have) a long and difficult day.8. You (to dream) at night? – Yes, I always (to dream) and if I (to eat) too much supper I (to have) nightmares.9. By the time the police (to come) the robbers (to manage) to escape.10. Mrs. Foster (to pay) the driver and (to ring) the bell. She (to wait) but there (to be) no answer. Everybody (to leave) for the party.11. How long they (to be married)?​