问题
选择题
Without proper lessons, you could ___ a lot of bad habits when playing the piano. [ ]
A. keep up
B. pick up
C. make up
D. catch up
答案
答案：B
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Without proper lessons, you could ___ a lot of bad habits when playing the piano. [ ]
A. keep up
B. pick up
C. make up
D. catch up
答案：B