Which of the following sentences doesn’t contain(包含) an object clause（宾语从句）?
| A．Many people believe robots will do most of our work. |
| B．Scientists should be able to develop plants that grow on Mars. |
| C．People think that humans on Mars have to wear special boots to make themselves heavier. |
| D．We all know the next Olympic Games will be held in Beijing. |
______, Cindy. Is that your clock?
| A．Excuse me | B．I’m fine |
| C．OK | D．Yes |
Alice is a girl. ______ last name is Smith.
| A．Their | B．His | C．Her | D．The |
—______ Jack, please. —J-A-C-K.
| A．Call | B．Ask | C．Spell | D．Look |
Please call Bob ______ 432-8866.
| A．on | B．for | C．in | D．at |
This is _____ orange. ______ orange is Tom’s.
| A．a; The | B．an; The |
| C．the; an | D．a, a |