．—Really ? Who will give ____lecture ? What is it about ?—Professor Chen , ____president of Beijing University . About pollution .
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A
the ;a
B
the;/
C
a ; the
D
a ;/
推荐题目
The old man leads ______happy life now, but he will never forget ______hard time when he was poor.
#8996
A
the, a
B
/; the
C
the; /
D
a, the
Having received ________ training of the MS. Company, he was offered ________ important position in management.
#10282
A
the; an
B
/; an
C
the; /
D
a; a
—What about __________ lecture yesterday?—Well，__________ most boring one indeed.
#7733
A
／；the
B
the；a
C
the; the
D
／；a
______ Chinese international medical relief team was sent to the 7.0-magnitude quake-hit areas in ______Southwest China's Sichuan province the moment it happened.
#8528
A
A; the
B
The; the
C
A; /
D
The; /
On Sept. 29, 2008，Shen Zhou VII returned to _______ earth from _______ space successfully.
#10502
A
the; /
B
/; the
C
/; /
D
the; the