Gun control is a subject __________ Americans have argued for a long time.
| A．of which | B．with which |
| C．into which | D．about which |
With Chang'e-3 successfully landing, China becomes the third country in the world that _______ on the moon.
| A．lands | B．has landed | C．landed | D．was landing |
People Who Moved China, hosted by CCTV, honors the people _______ the valuable contributions should be remembered by every Chinese.
| A．whose | B．of whom | C．that | D．of which |
—I’m sorry I stepped on your foot; it was an accident.
—It wasn’t! You did it ______________ .
| A．as usual | B．on purpose | C．at an end | D．right away |
How I wish we could study _________ there are fewer exams！
| A．which | B．that | C．when | D．where |
For quite a few students, their teacher’s advice is more important than _________ of their parents.
| A． one | B．that | C．it | D．any |