Question

I know one of the things _____I was unsure about was _____ hard it would be to climb   this mountain.

A．that; how

B．what; how

C．which; what

D．/; what

Answer 1

A

試題分析：考查定語從句和感嘆句：句意：我知道我不能確定的一件事情是爬這座山會多難。第一空是that引導(dǎo)的定語從句，先行詞是one of the things，定語從句中缺少賓語，用that，which或是省略關(guān)系代詞，但是第二空后面hard 是形容詞，用 how 修飾，what 修飾名詞，這句話是表語從句，如果不是感嘆句應(yīng)該是 It would be hard to climb this mountain。對 hard 強調(diào)用 how，選A。