If we … (will leave/leave/leaves) at 7 o’clock, we … (will arrive/arrive/arrives) on time. If Bob … (will get/get/gets) a good job, he … (will buy/buy/buys) a new car.If you … (won’t drink/don’t drink/doesn’t drink) wine, you … (won’t feel/don’t feel/doesn’t feel) sleepy.The child … (will start/start/starts) crying if the toy … (will break/break/breaksWe … (will go/go/goes) to the beach if the weather … (will be/is/be) sunny tomorrow.I … (will be/am/be) late for the concert if I … (won’t find/don’t find/doesn’t find) a taxi.If he … (will become/become/becomes) Prime Minister, he … (will raise/raise/raises) taxes.If you … (will be/are/is) more careful, you … (won’t make/makes/make) so many mistakes.​

A.
1. A sound of violin is heard in the hall.
2. He is always praised by his father when he works hard.
3. My sister's friend is often taken by her to the theatre.
4. I am waken by my mother at 7 o'clock every morning.
B.
1. The envelope was found by her behind the dining-room clock .
2. This book was bought by her a week ago.
3. This picture was painted by a great artist.
4. The window was broken by John the other day.
C.
1. I shall post this letter tomorrow.
2. They will discuss the report next week. 3. The secretary will change our time-table in two days. 4. Tom will meet us at the station. 
D.
1. The secretary has just brought the files. 2. Jack has just broken a cup. 3. My little brother has spoilt his toy. 4. She has done the room carefully. 
E.
1. Breakfast is being cooked by them.
2. The carpet is being cleaned by her.
3. The text is being translated by me.
4. The ruled are being learnt by us.
5. An interesting story is being told by him. 
F.
1. She was shown the shortest way to the station by them.
2. I has been taught English by my mother.
3. Many questions are asked by us at the lectures.
4. An interesting story has just been told me by Tom.
5. This book will be lent me by her next Sunday.
6. Newspapers and magazines are delivered by the postman every day.
7. Her name was told us by her after it had been asked by us twice.
8. A letter has been sent her brother by me.
9. A song is being sung by us.
10. The words are beung written by the teacher on the blackboard.