1. mr. smith(to arrive) at the office and(to turn) on the computer 2 sarah(to write) a letter yesterday when the lights(to go) out. 3. i (not to book) my holiday yet. 4. he(to apologize) because he(to miss) the last meeting 5. how long they(to cycle) before they(to stop) for a rest yesterday. 6. last night beth(to thank) chris for the lovely flowers which he(to buy) for her 7. i(not to ride) a bike since last month. 8. last week my sister(to borrow) my sweater. while she(to wear) it she(to spill) some juice on it.9. the reporters (to inform) that the police to discover a bomb in the office. 10. it(to rain) for half an hour when i(to leave) home. 11. when david(to enter) the kitchen he(to see) that his cat(to eat) his goldfish. 12. at 7 o'clock yesterday cathy(to sleep) as she(to be) tired.
2)was writing, went out
3)have not booked
4) apologized,had missed
5)were cycling before they stopped
6)thanked, had bought
7)have been riding
8)borrowed, was wearing it spilled
9)informed
10)was raining,left
11)entered.saw,was eating
12)was sleeping ,was tired