From the day we enter _____ University, we know _____ fierce competition for jobs is awaiting us upon graduation.
A. an, a B. /, a C a, / D. the, /
Many people now make a rule to buy cards for their friends before Christmas.
| A．themselves | B．it | C．that | D．this |
I think it a great honour to visit your country.
| A．to invite | B．inviting | C．having invited | D．to be invited |
It took us over an hour along the street.
| A．walk | B．to walk | C．walking | D．walked |
.He felt_____to work for human rights and progress.
| A．it his duty | B．his duty | C．that is a duty | D．that is his duty |
--- Do you like_____here?
---Oh, yes, the air, the weather and the way of life. Everything is so nice.
| A．this | B．there | C．that | D．it |