How often do you exercise?

（千万别抄袭,我可打了好久的,一字一字打出来的）你多久练习（锻炼）一次?｛How often do you (somedo)?这种句式多用问做某事的频率.切换括号内词语或词组,“How often do you ”的意思仍是“你多久……一次.如切换...