1 . His problems __________ (root) deeply in his childhood experiences. (所给词的适当形式填空)

2 . All the preparations for the task ________ (complete), and we’re ready to start. (所给词的适当形式填空)

3 . Chinese subway trains are now ________(出口) to developed countries including the United States. （根据汉语提示单词拼写）

4 . Einstein ________ (award) the Nobel Prize for his work in physics in 1921. (所给词的适当形式填空)

5 . So far it ________ (confirm) that the meeting will take place next week. (所给词的适当形式填空)

6 . It _________ (prove) that a balanced diet is good for health. (所给词的适当形式填空)

7 . It’s not your fault, and you could________(forgive) for missing the train. （所给词的适当形式填空）

8 . Look! The children________ (take) good care of by their aunt. (所给词的适当形式填空)

9 . For the past three years he has been ____ (雇用) as a firefighter. (根据汉语提示单词拼写)

10 . It is still under discussion whether the old bus station should ________(replace) by a modern hotel or not. (所给词的适当形式填空)