(   ) 1. People enjoy a        holiday during Spring Festival.

A. seven-days            B. seven-day                 C. seven days         D. seven day

(   ) 2.        the eve of Spring Festival, the whole family get together for a big dinner.

A. At                        B. On                           C. In                     D. Of 

(   ) 3. — What are the students doing?

            — They are busy        their homework.

          A. to do                    B. do                           C. doing                D. did