问题
选择题
To plant trees well, we must dig _____.[ ]
A. a three foot deep hole
B. three-foot-deep a hole
C. a hole three feet deep
D. a three-foot-deep hole
答案
答案：D
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To plant trees well, we must dig _____.[ ]
A. a three foot deep hole
B. three-foot-deep a hole
C. a hole three feet deep
D. a three-foot-deep hole
答案：D