is one of the best sports in summer, we boys all enjoy it.

__________at the door before you enter the office，or you’ll be considered impolite

We set World Reading Day ________ teens to form a good reading habit.—Nowadays, people are more aware of the importance of reading.

Tom’s been in the army _____ October1st, 2008. What about you—Oh, I joined the army _____February 4th, 2004.

下面这首五言律诗所缺语句排序正确的一项是（ ）夜宿七盘岭 【唐】沈佺期独游千里外，高卧七盘西。 ， 。， 。浮客空留听，褒城闻曙鸡。