_____ have you been to Beijing?—Twice.[ ]

You don’t know ______ I want to see you again. It’s a year since I last saw you.

Wang Fang rushed______Mr Sun’s house and helped him out. [ ]

_______ your parents eat meat every day? —Yes. But my brother only _______ vegetables.

I can see some pears ____ the tree,and a bird is ____ it, too.[ ]