阅读短文，判断正(T)误( F)。 

      We are on the train. Jenny is looking out the window. Li Ming is drawing a picture. Danny is singing.

The baby is sleeping now. The woman is reading the newspaper. She is quiet. The man behind me is

laughing. What am I doing?  I am drinking some pop. We are having fun.

( ) l. Jenny is drawing a picture.          

( ) 2. Li Ming is looking out the window.  

( ) 3. Danny is sleeping.                  

( ) 4. The woman is reading the newspaper.  

( ) 5. The man behind me is sleeping, too.                                                    

汽车排气管排出的黑烟是可燃混合气过（）。

A、稀

B、浓

C、轻