These books are _____. _____ are in _____ bags.
It was the first time in my life _______ I had experienced the UK.
There is 8-year-old boy playing Chinese chess with his friend in the classroom.
Is Miss Green in the office? –No, she ____ to the library.
Would you like to drink _________ orange?—Yes, I’d love to. But there isn’t _________ orange in the glass.