Is there a pot office near here ?一选择填空(20分)( )1, There _still some milk in the fridge. Its not necessary to go to the store today. A. am B. is C. are D. be ( )2, -Look! A blind man is in the middle of the street. Its too dangerous. -Lets help him go _the street. A. cross B. through C. across D. along( ) 3, -Why are you standing, Alice? -I cant see the blackboard clearly. Two tall boys are sitting _me.