Could you tell me how long you _____ on your homework every day?
---Will you go to Shanghai _______ plane ? ---No. It costs too much. We will go there _______ a train.
You look thirsty. Would you like_______?
--- Oh,I don’t feel well. --- You’d better __________see a doctor and have a good rest.
Both Mary and Kitty are fifteen years old. It means Mary is _____ Kitty.
Jay is one of _____________in teenagers.