----Hi, Linda, are your parents teachers?----No, they are police. They work at the ______.
--You have dropped ____ “s” in the word “necessary”. -- Oh, yes, ____ letter “s” should be doubled. A. a, an B. an, an C. an, the
It’s terrible. The cat miaowed a lot at night. It ________ a baby crying.
The woman _________ a blue coat _________ our teacher.
What ________ do you want to buy?
Does this book belong to ______?