Have long have the children done the following? put in since or for o clok years month years was eight hours

Question

Английский язык: Have long have the children done the following? put in since or for o clok years month years was eight hours

Mv0856 · Answer

Since, for, for, for, since, since, for since...

Have long have the children done the following? put in since or for o'clok years month years was eight hours