While _____ football on tin playground, I found ’my keys ______.
Jack had feeling of excitement when hearing his article had been published inschool magazine.
Coral(珊瑚) is not a plant but a variety of animal life ________ and bright colors.
If you don’t go to that school, _________.
One island and two lakes _______________ the country.
Soon we lost sight of that famous astronomer _________ himself LiQiang.