Ⅰ.how that if whom how long which why what where

Ⅰ.how that if whom how long which why what where
1 I want to know ____________ I can get to the post office.
2.Can you tell me ___________ she is doing.
3.The little boy can’t decide __________ shirt he should buy.
4 Do you know ___________ the restroom is?
5.The old woman asked ____________ she would go for a picnic with.
6.Did you know _____________ it would take him to get to museum?
7.My Chinese teacher asked me ___________ I had finished my homework.
8.Can you tell me ____________ the children are often late for class?
9.The teacher told us _____________ the earth goes around the sun.