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To plant the tree,we must dig_A a three feet deep holeB three-foot-deep a holeC a three-feet-deep holeD a hole three feet deep选哪个,为什么?

题目详情
To plant the tree,we must dig_
A a three feet deep holeB three-foot-deep a holeC a three-feet-deep holeD a hole three feet deep选哪个,为什么?
▼优质解答
答案和解析
D a hole three feet deep
a three-feet-deep hole 错在feet是foot(英尺)的复数 所以错了!a three-foot-deep hole 就对了!正如:a three-year-old boy一样!记住数词+名词+形容词用于名词之前时,名词一定用单数形式!