你好。答案是C. 这是强调句结构。结构是:It was - - - - - that -- -- - - .它的原始句是:How did he manage to solve the problem? 要成为强调句,先变成: it was how that he managed to solve the problem.再把how放在句首,成为:How was it that he managed to solve the problem?
D,how是特殊疑问句,后面it was that用陈述句
答案C
句子主干:How was it? 后面的that he managed to solve the problem ?为从句,
意思: 他怎么可能解决这个问题?
选C.特殊疑问句中,疑问词要放在句首,后面的谓语动词或系动词要提前表示倒装,所以这里只有C 合适。
希望我的回答能够帮助你,谢谢采纳!
C