问题补充:
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:
A. she realized
B. she had realized
C. had she realized
(答案→)D. did she realize
解析: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。