2. 外语
  3. Not until a baby kangaroo is four months old______to live outside its mother’s pouch.

Not until a baby kangaroo is four months old______to live outside its mother’s pouch.

admin2013-06-19  68
问题 Not until a baby kangaroo is four months old______to live outside its mother’s pouch.
选项 A、it begins
B、beginning
C、does it begin
D、and begins
答案C
解析 倒装。
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