问题
选择题
My grandpa is a science teacher and he_____ science. [ ]
A. is good to
B. is good for
C. does good to
D. is good at
答案
答案：D
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My grandpa is a science teacher and he_____ science. [ ]
A. is good to
B. is good for
C. does good to
D. is good at
答案：D