1.My books is on the desk (where)
​--> Where is your books?
--> Where is my books?
2.There are six rooms in Huong's house (how many)
--> How many rooms are there in Huong's house?
3.Yes,the nurse takes care of sisk children (does)
--> Does the nurse take care of sick children?
4.The David grow vegetables and raise cattle on the garm (who)
--> Who grow vegetables and raise cattle on the farm?
5.We can find terraced fields in the northern mountainous regions (where)
--> Where can we find terraced fields?