191.社会主义经济体制是指

6. “Listen, Mary is singing in the next room.”“That ( ) be Mary. She’s in hospital.”

1. John was finishing his assignments when his father ( ) home from work.

51 Directions: For each blank in the following passage, there are four choices given below and marked A, B, C and D. Choose the one that is most suitable and mark your answer by blackening the corresponding letter on the Answer Sheet. The death of a child, ( )51( ) one’s own child, is something the mind can hardly comprehend. It seems to go ( )52( ) nature. The end of a life that is still forming ( )53( ) has just begun is an almost unthinkable cruelty. But it happens. Parents sometimes must witness the illness and death of the children ( )54( ) whom they gave birth. And ( )55( ) will ever fill the empty place that the dead child leaves behind. Parents ( )56( ) to die before their children, which is the natural order of life events. When the situation is reversed and a child dies ( )57( ) the parents it seems wrong. Yet we never know why one person dies and another lives. But we do know ( )58( ) a child is gone, the parents still have a future, as grey and worthless as it may at first seem. Death may take the child, but the love never ( )59( ). The sorrow after a child’s death is one of the longest and hardest type of ( )60( ) to live with. And it takes long to deal with the parents’ own emotions.

8已知y=ksin2x的一个原函数为y=cos2x,则k等于( ).

11在社会存在中起决定作用的是()

36. Tennis is a ( ) invented by an Englishman a hundred years ago.

4.You ( ) yesterday if you were really serious about the job.

154.社会主义的根本原则和发展目标是

2. The meeting will be held in ( ) .