初中英语语法3002.,we must dig _____.A.a three feet deep hole B.three-foot-deep a holeC.a three-feet-deep hole D.a hole three feet deep选什么?为什么呢?

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初中英语语法3002.,we must dig _____.A.a three feet deep hole B.three-foot-deep a holeC.a three-feet-deep hole D.a hole three feet deep选什么?为什么呢?
初中英语语法300
2.,we must dig _____.
A.a three feet deep hole B.three-foot-deep a hole
C.a three-feet-deep hole D.a hole three feet deep
选什么?为什么呢?

初中英语语法3002.,we must dig _____.A.a three feet deep hole B.three-foot-deep a holeC.a three-feet-deep hole D.a hole three feet deep选什么?为什么呢?
选C,因为一般用连字符连接的几个词会组成一个形容词adj.,不用连字符就只能是a three feets deep hole,用排除法排去ABD,选C

C
知道 a ten-year-old boy 吗? 做这种题只要记住它就行了
会套吧?

c 吧