倒装结构分为部分倒装和完全倒装。所谓部分倒装，就是谓语的一部分位于主语前，与一般疑问句的句式相同。所谓完全倒装，就是将谓语动词置于主语前。
1. Only when the war was over _____ to his hometown.
A. did the young soldier return B. the young soldier returned
C. returned the young soldier D. the young soldier did return
2. Not only _____ interested in football but _____ beginning to show an interest in it.
A. the teacher himself is; all his students are
B. the teacher himself is; are all his students
C. is the teacher himself; are all his students
D. is the teacher himself; all his students are
