Stressful environments lead to unhealthy behaviors such as poor eating habits, which _____ increase the risk of heart disease.

A. in turn    B. in return    C. by chance   D. by turns

Stressful environments lead to unhealthy behaviors such as poor eating habits, which _____ increase the risk of heart disease.

　　A. in turn  B. in return  C. by chance D. by turns

Stressful environments lead to unhealthy behaviors such as poor eating habits, which _____ increase the risk of heart disease.

　　A. in turn  B. in return  C. by chance D. by turns

Stressful environments lead to unhealthy behaviors such as poor eating habits, which _____ increase the risk of heart disease.

A. in turn  B. in return  C. by chance D. by turns

_Stressful environments lead to unhealthy behaviors such as poor eating habits,which_______increase the risk of heart disease.

A.in turn                      B.in return

C.by chance                  D.by turns