He began to work at the age of 12.at the age of 12.画线,对划线部分提问

He began to work at the age of 12.at the age of 12.画线,对划线部分提问 My father began to work at 9：00同义句 He began to work in his thirties是什么意思? It was in 1990 ------he began to work.It was 1990 ------he began to work.用when/that填空 he began to work THERE( ) A.on his fifty B.at age of fifty C.when he fifty D.in his fifties说原因 He began to work there____.A.on his fifty B.at the age of fifty C.when he fifty Din his fifties He began to work there ( )A.on his fifty B.at age of fifty C.when he fifty D.in his fifties he stepped into the office, ____ down and began to work at once A sitting B to sit C having sat D sat Not until three years ago,did he begin to work outside.这句子中为什么不用 he began to work My brother began to work when he was sixteen. My brother began to work ---- ---- ---- ---- sixteenHe is the oldest teacher in the school.He is ----- ---- ---- ---- teacher in the school. No,he goes to work at nine?问句No,he goes to work at nine.问句 then the sons began to work at once是什么意思翻译成中文 速度啊! my father began to work at the factory in 1975（同义句） the farmers began to work in the fields _____dawn (in ,on,at,until) 用old,my,was,to,father,he,years,began,when,when,work,twenty连词成句 he went into his room, turned up the light and began to work这句话对不对 His father began to work as___as he was seventeenAold Bearly Cfar Dbefore哪个为什么? His father began to work since he was seven years old.这个句子有错吗?