问题
选择题
The habit of having eight hours' sleep a night she was accustomed to ________greatly since last year. [ ]
A. change
B. has changed
C. changing
D. have changed
答案
答案：B
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The habit of having eight hours' sleep a night she was accustomed to ________greatly since last year. [ ]
A. change
B. has changed
C. changing
D. have changed
答案：B