当我国国产大型客机C919在2017年5月5日首飞成功时,所有中国人都为之振奋.
All Chinese people when China sent its homegrown large passenger plane C919 into sky on May 5,2017.
teaching English, in our school, in their school, found, different from, the ways of, those, quite, I ,are (我发现他们学校教英语的方式与我们学校的大不相同.)
telling, he, us, the great changes of Liuzhou, the tourists, about, at the exhibition, showed, some photos of him (他给我们看了些他在展览会上向游客们讲述柳州巨变的照片.)
she, a dream, has (她有一个梦想.)
they, are, working (他们在工作.)
the room, is, small (房间很小.)