How do you plan on spending your time off?句中为什么加off,还有spend必

How do you plan on spending your time off?句中为什么加off,还有spend必 How do you spend your free time? -How do you spend your spare time? what else did you do on your last days off.这句话day为什么要加s,最后一个 how much time do you spend on your homework?（同义转换） 1.how much time do you spend on your hobbies every day ,Dani how long do you spend on your homework every day?(同义句) how l what other things did you do on your day off? How much time do you spend on lunch的同义句 how do you plan to spend Christmas? how do you spend your spare time?如题 How do you like to spend your free time?