Toplantthetree,wemustdig________.

发布时间:2020-07-26 20:13:16

To plant the tree, we must dig ________.A.a three foot deep holeB.a three-foot-deep holeC.a hole three-foot-deepD.a three-feet-deep hole

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B解析a three-foot-deep hole一个三英尺深的洞,连线连起来时,名词用单数形式.
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