单项选择题
Look at the terrible situation I am in! If only I（）your advice.
A. had followed B. would follow C. follow D. have followed
单项选择题 When house caught fire many people helped（）the fire which a few looked on.
单项选择题 When her neighbor Grandma Wang became ill, the girl often（）
单项选择题 Thus（）between England and France which was to last for 100 years.
