He did not leave __his mother came back 横线里选 when \ after \ until\ if

He did not leave __his mother came back 横线里选 when \ after \ until\ if
He did not leave __his mother came back 横线里选 when \ after \ until\ if

He did not leave __his mother came back 横线里选 when \ after \ until\ if
until,直到妈妈回来他才离开.

until
not...until...直到……才……

until

until 他一直不肯离开，直到他的妈妈回来。
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选until。
考察固定搭配：not...untill “直到...才...”
翻译：直到他妈妈回来他才离开。
求采纳！