Do you know the difficulty he has ___what eco-travel means?

Do you know the difficulty he has ___what eco-travel means? Do you know the difficulty he has ___ (understand) what trav Do you know the difficulty he had finishing the work do you know the difficulty he had________the work(finishing) 紧急:Do you know the difficulty he had____the work?为什么选Finishi Do you know his difficulty he had ____ his family? 英语翻译Do you know a young Eco-Hero?All Eco-Hero work as models Do you know the old man?---Yes.He is Mr Wang.He has been sel Do you know his difficulty he had __ five children at school Do you know his difficulty he had for keeping five children Do you know what this means?=Do you know the ___ ___this wor he seened to know what to do.(变为同意句） it____that he ___what t