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4. It was not warm enough for children to go to school.
5. If you did enough exercise, you would be fit.
6. During the week I get up earlier than at the weeekend.
7. These young trees have to be watered during the dry season.
8. This kitchen is not the same as mine.

X/
1. I stayed in your hotel from 24 April to 30 April in room 415.
2. On arriving home, I realised I had left a book in my room.
3. I wonder if it has been found and handed in.
4. It is a small, hardback book with a blue cover called "Gallions Reacg" by H.M. Tomlinson.
5. I am very anxious to get to the book back because it is now out of print and it is difficult to find in bookshops.
6. Also the book was given to me by the author whose signature is on the front cover.
7. I enclose a cheque for 1.50 to cover the cost of posting it back to me.

8. If, unfortunately, you do not find the book, please return me the cheque.