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
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