After three hours of waiting for the train ,our p----finally went to end.

After class,I play volleyball of three hours.错在哪 after three hours of waiting for the train,our p_____finally went to end. After three hours of waiting for the train ,our p----finally went to end. He was very ——（hurry） after four hours' hard work,so he asked for three bowls of noodles After a three hours ' long walk ,zhe boys look rether After three hours' hard work,you need to____yourself.(relax) They ___ ___ (休息)three hours after hard work. 英语I‘m so tired after ____walkI‘m so tired after ____walka.three hours b.three hours' c.three hour's d .three hour I can watch three hours of TV every day.(对three hours提问） after-hours How long can the naughty boy do his homework quietly?A.at three B.For three hoursC.Three hours ago D.After three hours Mr.Green will be back______ A.in three hour's time B.after three o'lock C.three hours laterMr.Green will be back______A.in three hour's time B.after three o'lock C.three hours later Mr.Green will be back______A.in three hour's time B.after three o'lock C.three hours laterMr.Green will be back______A.in three hour's time B.after three o'lock C.three hours later There will be a football match _____.There will be a football match _____.A three hours late B three hours laterC after three hours D in three hours 初中英语奥赛题The headmaster will be back______A.in three o'clock B.after three o'clockC.three hours after D.after three hours为什么答案是B?其他答案（尤其是D）哪里不对? I watch more than three hours of tv a day.这里为什么用of不用three hours for tv 英语翻译three pipes a ,b and c can fill a tank in 6 hours .after working at it together for 2 hours .c is closed and a and b can fill the remaining part in 7 hours .the number of hours taken by c alone to fill the tank is I want to have a rest after three ___ work.(hours/hours') 选哪个 谢谢,请说明下原因,谢谢!