你知道下列警示标志各代表什么吗?(5分)(1)Crosswalk (B) (2)Turn right ( ) (3)One way ( )(4)No entry ( )(5)No bikes ( )(6)No left turn ( )
( ) What ____ it? A. is B. are C. does
( ) What ____ mess! A. a B. an C. the
( ) My _____ are falling. A. book B. books C. pen
( ) But look ____ the balloons. A. in B. on C. at
()Come and _____ us! A.help B. helps C. helping