1.  I could not have so much knowledge without book.

2.  We will not have time enough to study if we spend too much time and energy take up social activities .

3.  A good-looking man does not necessarily have a gold heart.

4.  Humanity has always had varieties of idols since mankind came into being.

5.  Many people are always having the same job for many years even for all their life time, especially of the old man and woman, perhaps it's because they like the steady rythem such as the regular working time, the working conditions or the steady salary .

6.  They would not have interest to do a long time job.

7.  We will not have enough carelessness and impatient .

8.  We can also have a practice.

9.  A hard-working student will first have a thorough survey of the lists of new words or phrases.

10.  I have always had several good friends in the different period of life.