That is the only way we can imagine______ the overuse of water in students’ bathroom.
| A．to reduce | B．reducing | C．reduced | D．reduce |
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 |
The moment I got home, I found I ______ my jacket on the playground.
| A．had left | B．left | C．have left | D．was leaving |
I’d like to work with _______ is honest and easy to get on with.
| A．who | B．whomever | C．whoever | D．no matter who |