(   )6.  How often does Lin Tao exercise?

 A. Twice a week.    B. Three times a week.      C. Four times a week.

   (   )7. What was the matter with Ben?

A. He had a sore back.      B. He had a fever.       C. He had a toothache.

   (   )8. When is Bob coming back from Beijing?

A. On Tuesday.           B. On Thursday.         C. On Sunday.