He has two sons. One is a doctor, ____ is a student. He is now studying at ___ university.
She asks me to make a kite, but I don’t know _______ to make it.
The teacher often tells us ____________.
What______ do _______ boys want to buy?
---__________ music do you listen _______ every day?--- Less than an hour.
---________ do so many students stand before the blackboard? --- To find out some information on the New Year Show.