Mary writes       e-mail to David. She found        keys.

A. a; him              B. an; his              C. a; her             D. an; he

 Bill Gates is from the            .

A. UFO               B. USA               C. PRC                D. PK

You can see       books.       books are my father’s.

A. a，The           B. some，The                C. the，Some        D. the，The

 Thanks _____ your help.

A. to B. of C. for    D. at

 — ________ our school ID cards?  —They’re on the teacher’s desk.

A. How is  B. Where is       C. What about   D. Where are

Jim often has lunch at school.          he eats at home today.

A. But        B. Sometimes         C. And         D. Always

 Look at the map. It’s a map ________ China.

A. on         B. of C.  at          D. in 

 — ________is your notebook?    —It’s green.

A. Where B. What     C. What color             D.  How

 —Is this your baseball, David?   —No, it's not     . It's Helen's.

A. his        B. yours    C. mine     D. hers

 — Is this a key?   — ________ .

A. No, it isn’t.     B. It’s a ruler      C. Yes, it’s           D. OK