_____, it was very difficult, but about an hour later it bec

1.Lesson is very difficult,but _____ people understand it. the question was not very difficult,but he _____ couldn't an It was very easy so it took him o( )half an hour It ____ him about an hour _____ _____ doing his homework las It shouldn't be an hour late还是later? the train was ____ to arrive at 11,but it was an hour late can I there.Yes,you can.But it will take you about an hour t In fact it was not until two weeks later _____ he sent me an it takes him about half an hour _____(walk) to school It is difficult _her _the work in half an hour 英语翻译It was about a quarter of an hour after this when Kitty The train _arrive at 11:30,but it was an hour late.