(2013·安徽示范高中摸底考试)— How did you do in your essay?—I got ________ okay grade，but Mr.Jones gave Sarah top marks.She's ________ teacher's pet，you know.
#7898
A
/；a
B
an；/
C
/；the
D
an；a
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—Did you have _____ fun in Australia?—Sure. It was _____ unforgettable experience.
#9324
A
a; an
B
/; the
C
the; an
D
/; an
According to the newsman, as a result of_____ heavy fog, _____ expressway has been closed up until further notice.
#9582
A
a; the
B
the; 不填
C
不填;an
D
the; the
I often have conversations with John over ______ telephone, while keep in touch with Tom by ______ letter.
#10302
A
不填；the
B
不填；a
C
the；不填
D
the; a
She came in for coffee and told me traffic kept her awake last night.
#9218
A
a, the
B
a, 不填
C
the, the
D
the, 不填