11. –What _____ it is to play with computer games£¡

--Oh no£¡It’s a waste of time.

A. a fun           B. a great fun            C. fun             D. funny

12. –How do you keep_____£¿

--I keep _____ every day.

A. fit; working hard   B. fit; working out  C. fitting; working out  D. fitting; working hard

13. Our school volleyball team has _____ their training to prepare for the coming match.

A. stepped up          B. stepped to           C. stepped into       D. stepped on