It is our ________ to look after our parents when they get old.
| A．duty | B．habit | C．problem | D．decision |
You can see books. books are my father’s.
| A．a，The | B．some，The | C．the，Some | D．the，The |
Bill Gates is from the.
| A．UFO | B．USA | C．PRC | D．PK |
Mary writes e-mail to David. She found keys.
| A．a; him | B．an; his | C．a; her | D．an; he |
_______ goes to school with her mother.
| A．We | B．You | C．They | D．Jane |
Daniel and I in Class 1, Grade 7. are classmates.
| A．am; They | B．am; We | C．are; We | D．are; They |