. He looked rather untidy as there were two buttons _____ from his coat.
| A．loosing | B．losing | C．off | D．missing |
Peasants earn their living by selling agriculture ____ in China.
| A．food | B．produce | C．production | D．cost |
It was a matter of _____ would take the position.
| A．who | B．whoever | C．whom | D．whomever |
When the teacher praised him for working out the math problem, Jack looked __________ about at his classmates.
| A．proud | B．proudly | C．pride | D．pridely |
You must come with us to the police __________ Our head is waiting for you.
| A．headquarter | B．headline | C．headmaster | D．headache |
The shop owner welcomed all the guests with a __________ smile.
| A．practice | B．practise | C．practical | D．practiced |