D
1 a hole three feet deep-------在这里three feet deep放在hole的后面做定语后置,说明hole.
2 a three-foot-deep hole -------在这里three-foot-deep放在hole的前面做定语,修饰hole.why?不懂哪里不懂，我上面是举例说明A，D的区别，这题是说明hole，threefeetdeep放在hole的后面做定语后置A的形式不行呗a hole three feet deep =a three-foot-deep hole