Write questions for the underlined parts in the following sentences:
1.Of the three costumes, I like the red one most.
2.It took me three days to paint this picture.
3.Her son went to the English club twice a week.
4.The Yao people are famous for their elaborate costumes.
5.The cultural heritage of the ethnic peoples in Viet Nam is very rich. 
6.The Kinh people have the largest population in Viet Nam.
7.I can enjoy the vastness and the quietness of the sea. 
8.We sell fresh fruit at the Flea market in the town nearby 
9.My grandmother used to tell us folk tales before going to bed. 
10.We should take off our shoes when going inside the pagoda.