问题
选择题
_ we left the building that I realized how dangerous the situation had been.
A．Only then
B．It was only then
C．Only after
D．It was only after
答案
答案：D
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_ we left the building that I realized how dangerous the situation had been.
A．Only then
B．It was only then
C．Only after
D．It was only after
答案：D