Both of my parents are teachers(否定句) ______of my parents_______ _______ _______
问题描述:
Both of my parents are teachers(否定句) ______of my parents_______ _______ _______
U3 is too diffcult for him to understand(同义句)
U3 is______diffcult ________he can't understand it
答
1.None of my parents is a teacher./ Both of my parents are not teachers.
2.U3 is so difficult that he can't understand it.