1.  It's foods which contain some fat, some fibre, a little salt and so on.

2.  It contains a lot of fruit and green vegetables.

3.  It's rich in fibre and low in sugar and fat.

4.  When I saw t, I said it was easy, and I had done it.

5.  I found I couldn't explain it.

6.  How I explained it yesterday?

7.  I thought it over.

8.  Then, he said in a very dejected voice: "I have spent so much time on it.

9.  I had believes that it was a very hard question which few people could work out.

10.  " I thought I was lucky, because , when I work it yesterday .