c1, Where do they go in the summer holidays?

c2, where are you staying?

c3, Why doesn't Mai stay in the water very long?

c4, Which is Minh plays with on the beach?/ Where does Minh play with sand?

c5, Where is Hoang going to?

c6, What is Lan and Chi's favorite pastimes?

c7, What does Nam like? / What is Nam's hobby?

c8, Who plays the violin very well?

c9, What should I do today?

c10, Where does Chi often go?

1,where do they go in the summer holiday

2,where are you stay

3,why doesn't stay in the water very long

4,which is Minh plays on the beach

5,where is Hoang going to be the presidnt of the stamp collector's club

6,what is Lan and Chi 's favorite pastime

7,what does Nam like 

8,who play the violon very much

9,what should i do today

10,how often does chi goes to an art club to learn to play the piano