( )| A．—Is the light red? —Yes. | B．—Is the light green? —Yes. |
( )| A．You can go. | B．You can't go. |
( )| A．The bus is not fast. | B．The bus is fast. |
( )| A．I can see a plane. | B．I can see a ship. |
( )| A．Look at the light. Go! | B．Look at the light. Wait! |
( )| A．go | B．stop |
( )| A．stop | B．wait |
( )| A．green | B．red |
( )| A．lights | B．light |
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