It suddenly occurred to him___ he had left his keys in the office.
Happiness and success often come to those ______ are good at recognizing their own strengths.
______red paint with blue paint, you will get another beautiful paint of different colors.
Not every member ______ the decision to give up the plan.
— Did Jack come back early last night?— Yes. It was not yet eight o’clock ______ he arrived home.
Not until she took off her glasses ______ she used to be my neighbor.