——he has limited technical knowledge,the old worker has a lo

——he has limited technical knowledge,the old worker has a lo ___he has limited technical knowledge ,the old worker has a __he is limited technical knowledge the old worker was a lot ____he has little knowledge,the old worker has a lot of expe The old man is a great scientist,he has _________ knowledge The more civilized man has become,—— he is limited by the di the rock singer has a new l＿＿.He wears glasses and he has lo He has a wide knowledge of history the old man has two sons.one is a worker;_____is a tercher.A the old man has two sons.one is a worker;_____ is a teacher. It seems that the old man _____ something important.A has lo He has 2 sons .One is a teacher .The other is a worker 这里的on