1 . Our bad living habits will destroy the earth. Only by changing _________ we live can we save the earth.

2 . Many of the creatures in Rowling's world are not real, and much of ________ happens is strange.

3 . She asked me ____________ I had returned the books to the library, and I admitted that I hadn’t.

4 . The boy dived into the water and after _________ seemed to be a long time, he came up again.

5 . I wonder ______ is being done to help the endangered species.

6 . No one knows _______ he really is — except that he's known by the name "Jan Thorburn".

7 . At the age of eight, I decided to give up________________might have been a magnificent career as a painter. （用适当的词填空）

8 . I ask him ________ we’ll go to the zoo, but he doesn’t know.(用适当的词填空)

9 . We prayed ________ she would recover from her illness as soon as possible. (用适当的词填空)

10 . I don’t doubt ________ my daughter will have a bright future. (用适当的词填空)