1、The children only know a little about the traditional skill.(保持句意不变)
The children (don't ) know (much) about the traditional skill.
孩子们对传统技能了解不多.
2、Ben askd her sister.What subjects do you enjoy most?(合成宾语从句)
Ben askd her sister what subjects (she enjoyed) most.
本问她的妹妹,她最喜欢什么学科.