1.Do you know how many stars there are in the sky?
2.Can you tell me whether you went to middle school in 1990?
3.Do you know where he lives?
4.I want to know what it is.
5.I can't understand what the teacher said.
6.I don't know whose bike this is.
7.He asked me where mary was.
8.Do you remember how much you paid for the dictionary?
9.The teacher told us that light travels much faster than sound.
10.Could you tell me if Miss Zhao is in the office?