改错.we arrived at the place long before it started off.答案是把off去掉为什么啊?

it was about noon we arrived at the top of the mountain.改错 改错.we arrived at the place long before it started off.答案是把off去掉为什么啊? the film__for 5 minutes when we arrived at the cinerma we live at the earth改错 We are surprising at the thing.改错 ______,we arrived at the airport on time.(luck) When we arrived at the village,it 什么 dark.(be) When we arrived at the village,it 什么 dark.(be) She arrived at Shanghai at five o‘clock in the afternoon of September,21st.改错 We arrived at the station twenty minutes bWe arrived at the station twenty minutes before the train left的翻译 改错1.The teacher looked angry at the students 2.They must have arrived till now She is enough old to look after(照顾)herself.改错.过去完成时()+()构成我们是三点种到达的,但汽车离开了.We arrived at 3 o'clock.But the bus()().You'd better not to go home late.改错 we arrived at the hotel at 12 o'clock_______(那时正在下大雨) it was at 6 that we arrived at the school改成it was school 的 When we arrived at the Huangguo Mountain, we got ______ quickly.(介词填空) when we arrived,all s____ were taken ,so we had to stand at the back the train ____(leave) by the time we arrived at the station when we ______ the town,it was already dark.A、arrived B、arrived at C、got D、reached in为什么?