—Did Jack come back early last night? —Yes. It was not yet eight o’clock _______ he arrived home.
The door _____ open, no matter how hard she pushed.
I still remember the house _____my mother and I used to stay in that evening.
John invited about 40 people to his wedding, most of _____ are family members.
______ surprised the hostess most is _______ one of her friends left the party without saying a word.
_____ is even important _____ as the earth cooled down, water began to appear on its surface.