A-A+
Since our house was built 6 years ago its ____
问题详情
Since our house was built 6 years ago its ______ are in need of repairing.
A．rooves
B．roof
C．roofes
D．roofs请帮忙给出正确答案和分析，谢谢！
参考答案
正确答案：D
解析：roof的复数为不合规律的形式，不能变f为ves，而是直接加s，因此[D]为正确的选项。
考点：
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