单项选择题[A] down [C] beneath[B] below [D] off
单项选择题[A] water [C] soak[B] wet [D] irrigate
单项选择题[A] held [C] got[B] taken [D] developed
单项选择题[A] revealed [C] opened[B] exposed [D] shown
单项选择题[A] although [C] so[B] because [D] if