1. My cousin is in the third grade this year. (改为同义句)
    My cousin is in _____ _____ this year.
2. He is back form Qingdao. (改为同义句)
    He _____ _____ form Qingdao.
3. He is five years old. I am five years old, too. (改为同义句)
    He is five years old._____ _____ _____.
4. School begins at 8:30. (改为一般疑问句)
    _____ school _____ at 8:30.       
5. My friend will come to see me this evening. (改为否定句)
    My friend _____ come to see me this evening.

A. 3th Grade
B. 3 Grade
C. Grade 3
D. Grade 3rd

A. class 4, grade 7             
B. Class 4, Grade 7  
C. grade7, class 4                
D. Grade 7, Class 4