问题

From mum’s love, patience and understanding, I have learned what a huge responsibility _____ is to raise a child. [ ]

A: it
B: that
C: this
D: one

正确答案是：

同类题型

e leaves of this tree turn red ____ ,so we visit it at the end of every October.

r their common interests, they_____cooperated so smoothly in the investigation of the case.

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them not everybody could do it , _________

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