绿源电动车电话号码:请教句型转换

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i could wash myself when i was six(同意句）
i_______ ________wash myself_______i was six

i could wash myself when i was six(同意句）
i could not wash myself until i was six
词组not...until直到...才

I could not wash myself until i was six

同意楼上的说法，一个搭配的问题NOT...UNTIL直到...才

I could not wash myself before i was six.

I could not wash myself until i was six.

就是Not until 巨型

直到...才...

I could not wash myself until i was six.

请教句型转换 句型转换 句型转换. 句型转换 句型转换 句型转换 句型转换 句型转换！！！ 句型转换 句型转换: