[A] trip [C] voyage
[B] journey [D] route

单项选择题[A] studied [C] surveyed[B] researched [D] observed

单项选择题[A] plenty [C] deal[B] number [D] supply

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