(    ) 6. A ping-pong ball and a tennis        under the bed.
        A. is             B. am         C. are        D. is  not
(    ) 7 ---Is this a key?   --- ______.
        A. No, it isn’t.      B. It’s a ruler       C. Yes, its.   D. OK
(    )8. ---                          ?   
        --- They’re fine, thank you.
        A. How are you                       B. Who are you 
        C. What are they                      D. How are your mother and father
(    )9. --- Is this your ball, Nick?  
        --- Yes,       .
      A. this is     B. its        C. here is        D. it is