问题
选择题
_______ which way to take, the little boy behaved like a real gentleman who comforted his sister from time to time.
A．Leaving to wonder
B．Having left to wonder
C．Left wondering
D．Left to wonder
答案
答案：C
left wondering 中left的逻辑主语是the little boy，所以可转换成The little boy was left wondering…。
