Before leaving the country, you must be　in of a valid passport.

more energy to my study instead of being crazy about Internet games, I would be sitting in a comfortable office now．

If I _____ you, I _____ late for school this morning.

依次填入下面一段文字横线处的语句，衔接最恰当的一组是（ ）_____、_____ 、_____ 、_____ 、_____ 、_____。如在某些汉印中，就有“荼”字省作“茶”字的写法。①民间的书写者出于某种考虑，将“荼”减去一笔，这就成了“茶”字②随着饮茶习俗的推广，“荼”字的使用频率越来越高③ “荼”简写为“茶”，汉代已露端倪④在中唐之前“茶”字写作“荼”，这恐怕不是我们人人都知道的⑤茶作为饮品，我们都很熟悉⑥“茶”有多个义项，“茶叶”义是其中之一

Why not __ your new ideas? Otherwise you will never know whether they are possible or not.