1)<span>Are you a student? No, I'm a doctor.</span>
<span>2)<span>My sister is at home.</span></span>
<span><span>3)<span>We are not at school. We are at home.</span></span></span>
<span><span><span>4)<span>My brother is a pupil. He is at school.</span></span></span></span>
<span><span><span><span>5)<span>Is your mother at home? No, she is at work.</span></span></span></span></span>
<span><span><span><span><span>6)<span>Is your cousin at home? No,he is at school. He is pupil.</span></span></span></span></span></span>
<span><span><span><span><span><span>7)<span>Is your sister a teacher? No, she is a student.</span></span></span></span></span></span></span>
<span><span><span><span><span><span><span>8)<span>Is your father at wokr? No,he is at home.</span></span></span></span></span></span></span></span>
<span><span><span><span><span><span><span><span>9)<span>Is your sister a typewriter? - Yes, she is. - Is she at home? - No, she is at work.</span></span></span></span></span></span></span></span></span>
<span><span><span><span><span><span><span><span><span>10)<span>My grandfather is a scientist.</span></span></span></span></span></span></span></span></span></span>
<span><span><span><span><span><span><span><span><span><span>11)<span>My mother is not a teacher. She is a doctor. She is a very good doctor.</span></span></span></span></span></span></span></span></span></span></span>