问题
选择题
— Linda ______ ride a bike ______ she was only five.
— Yes, but she can now. [ ]
A. could; when
B. couldn't; when
C. can; because
D. can't; because
答案
答案：B
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— Linda ______ ride a bike ______ she was only five.
— Yes, but she can now. [ ]
A. could; when
B. couldn't; when
C. can; because
D. can't; because
答案：B