问题
选择题
Most old city walls were _____ down at that time because they were worn _____. [ ]
A. pulled; off
B. pushed; out
C. pushed; off
D. pulled; out
答案
答案：D
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Most old city walls were _____ down at that time because they were worn _____. [ ]
A. pulled; off
B. pushed; out
C. pushed; off
D. pulled; out
答案：D