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It hasn't been proved that sleepwalkers (can't/to wake) safely.

не увидела конкретных условий, поэтому

It hasn't been proved that sleepwalkers can't wake safely.

1-e

2-g

3-i

4-a

5-b

6-k

7-d

8-f

9- c

there are a lot of things in our school life, good or bad, which we shall remember all our lives. our school holidays are among them. every pupil has four holidays. some pupils enjoy summer holidays best, some others prefer winter holidays, and other children like those which they spent very well.

the winter holidays that i had years ago, are still very vivid in my memory. i had open looking forward to the holidays very much because half the