It was in the factory _________ his friend worked _______ he picked up a lot of experience.
---Will you go to Betty’s birthday party?---No, _______invited.
--- How is everything with you in the new school?--- _______ just because everybody is friendly and helpful.
How long do you think _ the computer company brings out a new product?
Prof. Richard was crazy about his research. His illness_________ his many years of hard work and irregular diet.
The manager, ________to know the fact, left the room quietly.