____ puzzled the mother most was ____the son would never agree with her.
A. What; why B. That; how C. Which; when D. What; where
____ puzzled the mother most was ____the son would never agree with her.
A. What; why B. That; how C. Which; when D. What; where
A
由句意可知：前句为最使母亲困惑的是----；后空为：为什么儿子从来也不赞同她。