Complete each of the following sentences with a (compound) word derived from the one(s) given in brackets.
The most ( )thing of all was that not a sound could be heard.(frighten)
【正确答案】:FRIGHTENING
【题目解析】:
本题考查常用动词的形容词形式。
由the most和thing可知,空缺处应填形容词修饰名词,frighten的形容词形式是frightening意为“令人恐惧的”,符合题意。
句意:最令人恐惧的(事)是悄无声息。