1)how much is the price of a dish of five-coloured sticky rice?

2)could you mind carrying my basket for me, please?

3)what do little ethnic peoples build the communal house?

4)When do you have been an ethnologist?

5)whose do the beautiful ornaments belong to?

giải thích 

dựa vào thì quá khứ, thuộc bảng quá khứ đơn,biết dùng từ

. What is the price of a dish of five-coloured sticky rice ?

=>How much is a dish of five-coloured sticky rice ?

2. Would you mind carrying my basket for me,please ?

=>Could you carry my basket for me ?

3. Why do some ethnic peoples build the communal house ?

=>What reasons for people build the communal house ?

4. How long have you been an ethnologist ?

=>When were you an ethnologist ?

5. Who do these beautiful ornaments belong to ?

=>Whose are these beautiful ornaments ?