用am, is或are填空。 

1. He _____ my cousin.    

2 What _____ these?    

3. Here _____ two eggs for your sister.    

4. _____ these his pears?    

5. My parents _____ in Beijing now.    

6. What _____ that in English?    

7. Hello,I _____ Gina.    

8. Paul and Tim _____ my cousins.    

9. His math books _____ on the desk.

10. _____ they your friends?

关于违约责任特征，下列说法错误的是( )。

A．违约责任具有惩罚性

B．违约责任是违约方对非违约方承担的责任

C．违约责任是一种民事责任

D．违约责任具有补偿性和一定的任意性