— Jack, do you know the answer ______ this question? It’s too difficult for me. — Sorry, I don’t know. You can ask Jim for help. He is good at math.
Try to who broke the window.
--have you worked in the factory? --For 5 years.
My sister Shanghai for two years.
--Would you like to eat some hamburgers? --, but I’m full.
It is dangerous football in the street.