Question

二、英語(yǔ)知識(shí)運(yùn)用（共兩節(jié)，滿分45分）
第一節(jié) 單項(xiàng)填空（共15小題；每小題1分，滿分15分）
從A．B．C．D四個(gè)選項(xiàng)中，選出可以填入空白處的最佳選項(xiàng)。并在答題卡上將該項(xiàng)的標(biāo)號(hào)涂黑。
It was not until they came to the very spot______how serious the situation was.
A．did they realize                                                         B．that they realized
C．when they realized                                                  D．where did they realize

Answer 1

B

解析