问题
句型转换
改为同义句
I learned piano when I was seven years old.
I learned piano _____ _____ _____ _____ seven.
答案
at the age of
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改为同义句
I learned piano when I was seven years old.
I learned piano _____ _____ _____ _____ seven.
at the age of
A. On the contrary
B. on the opposite
C. With the contrary
D. For the contrary