late he also forgot his books．A. Not only the boy turned up B. Not only the boy turned ou

问题补充：

late, he also forgot his books．

A. Not only the boy turned up

B. Not only the boy turned out

C. Not only did the boy show out

D. Not only did the boy show up

答案：

A. Not only the boy turned up

B. Not only the boy turned out

C. Not only did the boy show out

(答案→)D. Not only did the boy show up

解析：考查倒装句。从语境看，这里not only…but also修饰谓语动词并放在句首了，此时前面一句要用倒装句，用助动词构成倒装，用动词短语show up或turn up表示“出现”。