the boy was 3kilos when he was born.同义句

初一英语同义句一句The boy was 3 kilos when he was born.(改同义句)The boy The boy weighed (4 kilos ) when he was born. （对括号部分提问 ） A new star was shining in the sky when he was born.同义句 Poppy____(weight)two kilos when he was born. He couldn't hear anything when he was born .(改为同义句） He was _ He couldn't hear anything when he was born(同义句） He was ____ When was Tom born?的同义句 the boy learned to play the piano when he was 5改为同义句 when was he born the little boy couldn't ride a bike when he was five同义句 The boy went to school when he was five years old.（改为同义句） it was 2002 when the boy was born是强调句吗?