问题
选择题
Having a large family to support, Mr. Johnson had to work______ in the evening. [ ]
A. four another hours
B. more four hours
C. other four hours
D. four extra hours
答案
答案：D
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Having a large family to support, Mr. Johnson had to work______ in the evening. [ ]
A. four another hours
B. more four hours
C. other four hours
D. four extra hours
答案：D