问题
选择题
Only after he graduated _______ how much he loved his alma mater (母校) .
A．he realized
B．he had realized
C．had he realized
D．did he realize
答案
答案：D
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Only after he graduated _______ how much he loved his alma mater (母校) .
A．he realized
B．he had realized
C．had he realized
D．did he realize
答案：D