21. Use the verb in brackets in the past indefinite or the past continuous and comment on the difference in the meaning of the form, if any.

1. When at last I reached her house Anne just (to leave) and therefore we only had time for a few words. 2. When I (to reach) her home, Anne (to go away) at once, that is why I had no time to speak to her. 3. As he (to get) into the tram, it (to start) suddenly and he (to fall) backwards on the pavement. 4. As soon as he (to get) into the bus, the bus (to start). 5. When I (to hear) his knock, I (to go) to the door and (to open) it but I (not to recognize) him at first, because I (not to wear) my glasses. 6. Suddenly he (to realize) that he (to travel) in the wrong direction. 7. Margaret was very extravagant, she always (to buy) herself new clothes. 8. Why you (to interrupt) me? I (to have) an amusing con­versation with Dick. 9. "When I (to come) to his studio, he (to paint) the portrait of his wife." "You (to like) it?" "He only just (to start) when I (to see) it, so I could not judge." 10. As we (to walk) along the road we (to hear) a car com­ing from .behind. Tom (to turn) round and (to hold up) his hand. The car (to stop) .11. When I (to arrive) at the meeting the first speaker had just finished speaking and the audience (to clap).

22. Replace the time indicators by those given in brackets, change the form of the verb accordingly and make other necessary changes.

1. It rained yesterday (now, all day long yesterday, at this time yesterday, tomorrow, says the weather forecast, when we left home, all the time while we were working in the garden). 2. John regularly writes letters to his parents (sel­dom, the day before yesterday, tonight, when we called on him last night, at present, never). 3. Philip stayed with his friends during his vacations (when he was in Moscow, when­ever he comes to Moscow, for the time being, still, no longer — he lives in the students' hostel). 4. Mrs. Stuart is going shopping today (on Saturdays, after her children returned from school, while her children had classes, as soon as she finished doing the room). 5. The family will be watch­ing TV when I come home (the whole evening, from 7 till 10, after dinner, every night, still). 6. Professor Clark will be giving a talk on Greek sculpture at the same time next week (at the same time last week, last Monday, next Friday, from 9 till 11 a. m., when the term is over, already, when we en­tered the lecture hall, at this very moment).

23. Make up sentences out of the parts in columns without changing the form of the verb.

I The Grants John Oliver and Mariam Our cat The students The doctor The watch Christine The little boy The driver The old woman The photogra­pher Tom Professor Smith My family Grandfather The young wom­an The driver

are moving into the new flat was just unlocking the door was wearing her new boots went to the same school shall be still working stopped were writing a dicta­tion catches mice was examining the patient jumped out of the car was knitting (knit­ted) was not sleeping yet will give a lecture on Impres­sionists stay in the country was constantly laugh­ing at his friends was looking through the snapshots was oiling his car

once in a while yester­day when I saw him next month at a quarter to six when you return when the nurse entered the ward when the bell rang at the age of ten all day long when we switched on the wireless the moment the engine died when a boy when another car stopped near him