根据所给的主题句及提示,写好段落的扩展句。 1) 主题句:How excited we were when we learned that we were going to have a spring holiday. 1 after—discussion—agree—climb—out of the city 2 we—pass by—mountain—the first time—think of—climb it 3 set out—early—morning 4 about—an hour—begin—tired—still a long way—go 5 short break—go on—climb 6 lunch time—get to the top—mountain 7 our beautiful city—below us—happy—very tired 结尾句:It proves that many things are just like climbing a mountain; they look attractive, but they are not easy to do.