名词性从句重难点剖析(6)
8. Nobody knows ___ he mentioned that at the meeting.
A. that B. why
C. what D. where
9. There is no doubt ____ my friend was not important to them all.
A. that B. whether
C. if D. why
10. I have no idea ____ they will visit our school; we have got everything ready.
A. how B. when
C. that D. why
Key 1-5 DDABD
6-10 ABBAB