注:我只填句中所缺的部分.
1.that she should do the work alone.
2.where he can buy the dictionary.
3.whether they liked to make friends with him.
4.that he can be a great artist through hard work.
5.It has not been announced where the party will be held.
6.It was a mystery what caused the accident.
7.It worries her that her hair is turning gray.
8.It is true that his father got the Nobel Prize.
