---Look at the boy running on the playground. Is it David? ---It ______ be him. I saw him go to the teachers’ office just now.
Thanks for ___________ my daughter to your birthday party .
— What did you do last weekend? — I ______ shopping with my friends.
Millie prefers _____ to _______.
The number of students in our school ___ 9,000 and a number of them ___ from the city.
Don’t eat ____ meat. If you do so, you’ll get _____fat.