问题
选择题
She ________ hum pieces of music at the age of four. She is a talented singer. [ ]
A. can
B. could
C. must
D. should
答案
答案：B
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She ________ hum pieces of music at the age of four. She is a talented singer. [ ]
A. can
B. could
C. must
D. should
答案：B