Most scientists seem to agree that ________ certain limit should be set on________ consumption(消费) of cars to ease air pollution.
A.a; the B．/; the
C．the; / D．the; the
Japan has been trying to bring its nuclear crisis under ________ control, but ________ spread of radiation has raised concerns about the safety of the nuclear energy.
A. a; the B. the; /
C. /; the D. a; /
Early in ________morning word came that Mr. Black had been elected ________president of the company.
A. a；不填 B. the；不填
C. a; the D. 不填；the
She studied ________ medicine before she became ________ writer
A.the; the B．the; a
C．不填； a D．不填； the
On April 24th, 2011, Hu Jintao, ________ chairman of the P．R.C., and other state leaders attended Tsinghua centennial (百年的) celebration at ________ Great Hall of the People in Beijing.
A./；/ B./；the
C．the; the D.the; /
My summer camp isn't ________ good fun, but it is ________ real learning experience for me.
A. a; / B. the; a
C. /; a D. a; the
