It was in the lab ______ was taken charge of by Professor Harris _______ they did the experiment.
| A．which, that | B．that, where |
| C．where, that | D．which, where |
Hiking by oneself can be fun and good for health. It may also be good for ______ building.
| A．respect | B．friendship | C．reputation | D．character |
One thousand dollars a month is not a fortune but would help cover my living _______.
| A．bills | B．expenses | C．prices | D．charges |
Dogs have a very good ______ of smell and are often used to search for survivors in an earthquake.
| A．sense | B．view | C．means | D．idea |
To save some of the human languages before they are forgotten, the students in our school started a discussion “Save Our ________”
| A．Sky | B．Life | C．Arts | D．Voices |
In a time of social reform, people’s state of mind tends to keep _______ with the rapid changes of society.
| A．terms | B．pace | C．progress | D．touch |