With a WH-word:(1)____ not speak to the professor about it?(2)__

With a WH-word:
(1)____ not speak to the professor about it?
(2)____ come you didn't tell me earlier.
【正确答案】：Why;How
【题目解析】：【考点点击】本题考查特殊疑问词。【要点透析】 Why not表示劝诱、建议或命令,意为“为什么不…呢”,其后跟动词原形。Howcome是固定搭配,意为“怎么会,怎么回事”,其后用陈述语序。