—Did Jack come back early last night? —Yes. It was not yet eight o’clock _______ he arrived home.
We can give you a lift to the airport _______ you don’t mind the crowdedness, for there have already been four of us in the car.
Being a teacher, you must observe your behavior, for ________ you say and do has a life-long effect on your students.
He made another wonderful discovery, _______ of great importance to science.
At first I insisted to go with Rose and Peter, but when I realized they wanted to be alone together so I felt very _______ and uncomfortable.
My birthday ________next week, I’m busy preparing for a big birthday party, planning to invite all my best friends.