天津市河东区201 4年高三二模考试)15. It was not until 1965_______liberated.
Students ___________ remain in their seats until all the papers have been collected.
__________strong earthquake struck __________ Yaan, Sichuan province on April 20, 2013.
―Hey, you haven’t been acting like yourself. Everything is OK? ―_________.
In this company, it is required that anyone who ______ recently come here _____ this kind of test.
I can’t believe that there are _____ many poor people in ____ a rich country.