问题
选择题
Only then __________ how much damage had been caused.
A．she realized
B．she had realized
C．had she realized
D．did she realize
答案
D。
当“only+状语”置于句首时，其后句子要用倒装语序，如：Only then did he realize that he was wrong. 到那时他才意识到他错了。Only in this way are you able to do it well. 你只有用这种方法才能把它做好。