16. —Hey, I have found the way home!

— Oh, ______ ! I thought we were going to be stuck on this country road all night.

A. what a pity          B. good idea        C. what a relief        D. cheer up

17. ______ in Avebury, England, the monument is so large that it can only be seen from the sky.

A. Located          B. Locating     C. Being located        D. To locate

18. The ______ of students should cover more aspect, such as activity involvement and teamwork contributions and so on.

A. admission        B. assessment       C. awareness         D. ambition