The boy, _____ leg was injured in the football match, was only 11 years old.
| A．which | B．whose | C．who | D．whom |
My uncle ____________ in Beijing for over 10 years. Now he lives in his hometown in Xuyi.
| A．has worked | B．worded | C．had worked | D．works |
Peter said he ______ when he got there but we have never heard from him since then.
| A．was writing | B．would write | C．had written | D．has been writing |
The project is reported __________ 3 months ago.
| A．to complete | B．to be completed | C．to have completed | D．to have been completed |
American Indians _______ about five percent of the U.S population.
| A．fill up | B．bring up | C．make up | D．set up |
Gun control is a subject _______ Americans have argued for a long time.
| A．of which | B．with which | C．about which | D．into which |