8. It is generally considered unwise to give a child ____ he or she wants。

　　A. however

　　B. whatever

　　C. whichever

　　D. whenever

　　9. He asked me ________ with me。

　　A. what is the trouble

　　B. what wrong was

　　C. what was the matter

　　D. what trouble it is

　　10. I am sure ________ he said is true。

　　A. that

　　B. about that

　　C. of that

　　D. that what

　　11. When and why he came here ________ yet。

　　A. is not known

　　B. are not known

　　C. has not known

　　D. have not bee

　　12.I wonder how much ________。

　　A. does the watch cost

　　B. did the watch cost

　　C. the watch cost

　　D. the watch costs

　　13. Mary is ________ someone might recognize her。

　　A. afraid of

　　B. afraid about

　　C. afraid that

　　D. afraid for