—Why do you look sad?
—There are so many problems ________.
| A．remaining to settle | B．remained settling |
| C．remaining to be settled | D．remained to be settled |
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 |
To my ______, I passed the exam easily.
| A．joy | B．joyful | C．joyless | D．joyness |
____ speaking, I didn’t do it on purpose.
| A．Honestly | B．Honest | C．Honesty | D．Dishonest |