B Use subject pronouns.the girl / in my classShe's in my class.6 Carlos and Marina / our teachers_________'re our teachers.7 Mia andl / in class 1B_______'re in class 1B.8 the laptop / on the desk________'s on the desk.9 the dictionaries / on the shelf_______'re on the shelf.10 David / twelve years old________'s twelve years old.