问题
选择题
Mr. Lin is good _____ us all. He often helps us clean the student dormitory. [ ]
A. at
B. for
C. to
D. on
答案
答案：A
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Mr. Lin is good _____ us all. He often helps us clean the student dormitory. [ ]
A. at
B. for
C. to
D. on
答案：A