(deep)  The project would ________the river from 40 to 45 feet, to allow for larger ships.
(deep)  The project would ________the river from 40 to 45 feet, to allow for larger ships.
【正确答案】:deepen
【题目解析】:构词知识题。空格处前面是助动词would,后面是名词,显然空格处要填一个动词。deep是形容词,变为动词需要添加动词后缀-en。因此正确答案是deepen,表示“加深”。
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