谁能告诉我“for half an hour"的疑问词是什么?

谁能告诉我“for half an hour的疑问词是什么? 谁能告诉我“for half an hour的疑问词是什么?这是一道句型转换题 I dance for half an hour every day 中的 for 什么时候能忽略 for half an hour的另一种说法 we read english for half an hour every day(对for half an hour提问） They go running for half an hour 对for half an hour 提问没有 They talked for half an hour.请问 for half an hour是talked的状语吗? He kept ---(wait) for her for about half an hour. half an hour?half an hour、an hour and a half 、 one and a half hours和one half hour都能表示一个半小时吗? I sometimes play basketball for half an hour同义句改half an hour 为空空 they walked for.A,an hour B.half a hour C,half an hour 选哪个 It took me half an hour to look for it.(对half an hour 提问) the class began half an hour ago的同一句 the calss()()()for half an hour . Half an She has waited for Daniel for half an hour?（对for half an hour提问）（19：35之前~） 谁能告诉我Life For Rent 中文歌词? he usually does __________in the morning.A.half an hour sportB.half an hour of sportC.for half an hour sportD.half hour sport They will be back ____.A.for half an hourThey will be back ____.A.for half an hour B.after half an hourC.half an hour ago D.in half an hour