While i (to copy) the exercise, my friends (to describe) a picture. 2)when we came in, the children (to clean) their desks.3) we met her at the bus stop. she (to wait) for the bus. 4)some of the children (to ski) while other children (to skate). everybody (to have) a lot of fun. 5)when we came the family (to get) everything ready for christmas.  bob and helen (to decorate) the christmas tree.6) the girls (to feed) the birds in the garden while the boys (to make) a bird-house.
в вопрсителтную форму !

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ответ:

while i was copping the exercise my friends were describing a picture. when we came in the children were cleaning the desks. we met her at the bus stop. she was waiting for the bus. some of the children were skiing while other children were skating. everybody had a lot of fun. when we came the family were getting everything ready for christmas. bob and helen were decorating the christmas tree. are the girls were feeding the birds in the garden while the boys were making a bird-house.

объяснение:

если я правильно поняла, то нужно было поставить в нужное время?

1  . was the first prize won by john. 2. are our exercises   corrected each night by the teacher. 3. is  the mail   delivered at ten o’clock. 4. will   the construction of the bridge be finished this year. 5. will the contract   be signed tomorrow. 6. what was  listened to with great interest. 7. is the film   much spoken about. 8. are all the letters looked through by the secretary. 9.were all these books   published by this publishing house.1. the first prize wasn t  won by john. 2. our exercises aren t corrected each night by the teacher. 3. the mail isn t  delivered at ten o’clock. 4. the construction of the bridge won t be finished this year. 5. the contract won t be signed tomorrow. 6. his report wasn t  listened to with great interest. 7. the film isn t much spoken about. 8. all the letters aren t looked through by the secretary. 9. all these books weren t published by this publishing house.