Complete the passage using suitable connectors.Morning walk is a good habit for all classes of people. (a) ____ it is a simple exercise, it is good for health both physically (b) _____ mentally. (c) ____ the morning air is fresh and free from any kind of noise and pollutions, it keeps us sound and healthy. Morning walk costs nothing (d) ______ gives more. (e) ______we should make the habit of morning walk.

(a) Though/Although; (b) and (c) As/Since/Because (d) but (e) So/Thus 

Morning walk is a good habit for all classes of people. (a) Though/Although it is a simple exercise, it is good for health both physically (b) and mentally. (c) As/Since/Because the morning air is fresh and free from any kind of noise and pollutions, it keeps us sound and healthy. Morning walk costs nothing (d)but gives more. (e) So/Thus we should make the habit of morning walk.