Is ________ man’s ability to reason that sets him apart from other animals?
| A．one | B．this | C．it | D． / |
I looked under _____ bed and found _____ book I lost last week.
| A．the; a | B．the: the | C．不填；the | D．the; 不填 |
Geography is the study of the countries of the world and of such things ______ the land, seas, climate, towns, and population.
| A．as | B．that | C．which | D．what |
Late again! What’s your ______ this time?
| A．expression | B．saying | C．meaning | D．excuse |
The professor was so ______, hardly anyone came to class.
| A．popular | B．boring | C．friendly | D．lively |
Jake’s passed his exams. We’re going out to ______.
| A．joke | B．invite | C．celebrate | D．argue |