--      does Mary usually go to the bubby club?--Once a week.

 –John had a short walk after lunch,__________?

What he said is impossible, _______? 

There ____more cars now in our country.

-The captain（船长）of the Sewol ferry（岁月号）hardly do anything to help the passengers on the ferry。          ？-              ，so over two hundred people lost their lives in the accident。