Question

But for the help of my English teacher，I ________ the first prize in the English Writing Competition.

A．would not win	B．would not have won
C．would win	D．would have won

Answer 1

B

解析此处虚拟语气表示与过去事实相反，句子谓语动词用would/should/could/might＋have done结构，根据句意要用否定含义，故选B。本句的条件是由介词短语(but for)表达的。