．—You've dropped ________ “s” in the word “acros”．—Oh, ________ letter “s” should be doubled like this “across”．
#7656
A
a; a
B
an; a
C
an; the
D
the; the
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－Have you made ______ apology to your mother?－Yes. I regretted speaking to her in ______ rude manner.
#7856
A
an; a
B
an; /
C
the; a
D
/ ; the
Only through _______ talks can we build trust and only through cooperation can we create _______ win-win economic situation.
#8982
A
/, a
B
the, the
C
/, the
D
the, a
When he left _____school, he got a job as _____secretary in a food company.
#8712
A
the; a
B
the; the
C
/; a
D
/; the
For Wang Shun，________ university graduate from China's less developed Guizhou Province，shopping online is ________ delight as she tries to keep pace with the lives of those in big cities.
#7997
A
the；a
B
a；不填
C
an；a
D
a；a
Below the topsoil of the earth is the subsoil, _____ layer that contains stones mixed with a small amount of _____ organic matter.
#9570
A
a; the
B
the; the
C
不填; 不填
D
a; 不填