三、单项选择。（15分）
(    ) 1. The light is        .  You must look left and right and then cross the road.
      A. green        B. red         C. yellow
(    ) 2. You can\'t park your bike here. You must          the right place.
      A. look at       B. look for     C. look
(    ) 3.           three girls aren\'t         .
      A These … Chinese          B. Those … China