The China Dream advocated by Xi Jinping, general secretary of the CPC, covers________ dream of turning a well-off life into reality by 2020.
David jumped___to get the first___the beginning of the sports.
By the time the fire-fighters arrived, the fire had been put___by the teachers and the students.
Such a problem is____difficult for a primary school student ___.
The railway was opened______traffic_______ April 4, 1985.
Ted has been absent_____class for quite some time.