I dance for half an hour every day 中的 for 什么时候能忽略

I dance for half an hour every day 中的 for 什么时候能忽略 She always dance for half an hour.It takes her half to dance.中文.for在这里的意思 I sometimes play basketball for half an hour同义句改half an hour 为空空 I ususlly go( )(walk)for half an hour I have been there for half an hour.啥意思 I use your bike for half an hour . I go running for half an hour every morning?对for half an hour 提问,马上就要 i usually go running for half an hour对划线部分提问线是for half an hour I play basketball for half an hour every day...对for half an hour 提问.该怎样回答急 I usually do my homework for half an hour.（对划线部分提问）划线部分:half an hour划线部分: for half an hour I got up half an hour ago.(保持句意不变）I ____ ____ up for half an hour . I waited for you (for half an hour)对括号部分提问 I go running for half an hour every morning.请对I进行提问! i can watch tv for half an hour b( ) i read a book 首字母填空 I usually go running for half an hour in the morning 对for half an hour 提问急啊,各位帮帮忙 i got up half an hour ago(保持句意不变）改成 i ____ ____ up for half an hour. I often exercise in the garden for half an __________ (hour) in the morning? I took walk in the garden（ for half an hour)对划线部分提问