People who have regular physical exercise seldom catch a disease like H1N1 Flu, ______?

A. don’t they          B. haven’t they     C. do they     D. have they

People who have regular physical exercise seldom catch a disease like H1N1 Flu, ______?

1. A.
   don’t they
2. B.
   haven’t they
3. C.
   do they
4. D.
   have they

People who have regular physical exercise seldom catch a disease like H1N1 Flu, ______?

A. don’t they        B. haven’t they   C. do they   D. have they

People who have regular physical exercise seldom catch a disease like H1N1 Flu, ______?