If the camera ________ start,press the “camera” key.A.isn’t B.doesn’t C.don’t
—Mum, my teacher, Mr. Wang. — Nice to meet you, Mr. Wang.
—John, what’s this _______ English? — It’s a computer.
This is ___ map and that is ____ orange.
---The blue pen is mine. ________ this dictionary? ---It’s hers.
---________ are they? ---They are my ________.