My father was reading newspapers ____ my mother was cooking at this time yesterday evening.
---- I have very good grade in English this time . ---- _______________!
I didn’t understand my parents why they are so strict ______ me ______ my schoolwork.
Both red and black represent _____ . But I prefer to wear red when I feel tired .
He devoted all his time he had _____ others.
Young people must be ready take new challenges .