1. Doris wrote a letter yesterday. (变为一般疑问句)

　　    Doris　　   a letter yesterday?

2. My parents should allow me to study with friends. (改为同义句)

I should　　   　　   to study with friends.

3. They finish basketball practice at_4:30 every day. (就划线部分提问)

　　    　　   do they finish basketball practice ?

4. The students are sleepy after a long week of classes. (变为感叹句)

　　    　　   the students are after a long week of classes!

5. The children cried because he heard the bad news. (就划线部分提问)

        　　  the children cry?