自考《英语（一）》试题练习：介词短语的辨析（9.13）
单选题
1.[2009.7]Other students joined in the protest，and ________ a large crowd gathered outside the building.
A.after all
B.as soon as
C.long before
D.before long
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单选题
1.[2009.7]Other students joined in the protest，and ________ a large crowd gathered outside the building.
A.after all
B.as soon as
C.long before
D.before long
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