问题
选择题
Not until they left school________how much their teachers loved them and helped them.
A．they realized
B．did they realized
C．the would realized
D．had they realized
答案
答案：B
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Not until they left school________how much their teachers loved them and helped them.
A．they realized
B．did they realized
C．the would realized
D．had they realized
答案：B