一、单项选择（35%）
1. Frank and Helen ____________ in Class One.
A. is B. am C. are D. be
2. Your uncle’s ____________ is your cousin.
A. sister B. father C. daughter D. mother
3. – Where’s my pencil case? -- _________________.
A. Oh, I don’t know. B. Yes, it is. C. They’re on the desk. D. No, I’m not.
