(七)

　　1.he preferred being neutral to taking sides

　　2.Since we can not measure the increase or decrease of noise

　　3.but neither the father nor his children were in the car

　　4.so that she would’ t often meet her own colleagues

　　5.in the new job his talents will be better utilized than before

　　(八)

　　1.she was well aware that her children would never returned

　　2.whatever he says and whatever he does are always considered to be right

　　3.the chemical teacher picked several students at random

　　4.some people still can’t adapt to the hot and humid weather

　　5.have so many strong influences united to product such a large disaster

　　(九)

　　1.and therefore many find it difficult to became deeply involved with each other

　　2.not to leave my car unlocked as there had been lots of stealing from cars

　　3.such a rich country should have so many poor people living in it

　　4.reached the decision that they should hold on their strike for two more days

　　5.but the young man demonstrated great courage saving the little boy

　　(十)

　　1.he has become sophisticated since she went to live in the south and did business there

　　2.It was very late when the last student finished the exercises

　　3.Ever if they were in favor of the idea of postponing the meeting

　　4.she read the article aloud again and again

　　5.without knowing that their habits are doing harm to themselves and their offspring