Yang Liwei spent the whole evening talking about the things and persons ________ none of us has ever heard of in CCTV station.
| A．which | B．who | C．whom | D．that |
—Where did you come across our Chinese teacher?
—It was in the supermarket ________ I purchased mooncakes.
| A．that | B．which |
| C．where | D．when |
The course about Chinese food attracts over 100 students per year, ________ up to half are from overseas.
| A．in which | B．for whom |
| C．with which | D．of whom |
The road construction is based on the agreement, one of ________ purposes is to ensure its completion on time.
| A．which | B．whose |
| C．that | D．what |
．What sets human beings apart from animals is not the pursuit of happiness, but the pursuit of meaning, ________ is unique to humans.
| A．that | B．what |
| C．which | D．as |
One theory, ________ suggested by Harvard University, is that humans began cooking their food, thereby releasing nutrients locked in the raw food and reducing the time needed to chew it.
| A．which | B．as |
| C．that | D．what |