—There is a pen on the ground. Is it Li Long’s?—It Li Long’s. He went to Beijing many days ago.
Let’s go and play _____ ping pong. I don’t want to play ____piano.
Why not________ to the city?
She wants _______ an Mp3 _____me on my birthday.
---- _______ I go on a trip to Shanghai?--- Yes, you may.
He eats an egg ________breakfast every day.