问题
选择题
—What did Frankie do when he was young?
—He______ play the piano very often.[ ]
A. uses to
B. used to
C. is used to
D. was used to
答案
答案：B
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—What did Frankie do when he was young?
—He______ play the piano very often.[ ]
A. uses to
B. used to
C. is used to
D. was used to
答案：B