单选题 I got a headache. Otherwise I ______ to the lecture.
A. would go B. would have gone C. went D. have

【正确答案】 B
【答案解析】题中otherwise为信号词，这意味着本句为虚拟句，类似的词或词组还有without，but for，but that等。题意为：我当时头痛，否则我就会去欣赏那场音乐会了。