... REVIEW UNIT 4,5,61. Tommy left high school _______ the age _______ seventeen.a. at / of b. in / for c. on / with d. of / in2. The academic year in Vietnam ... The United Nations Secretary-General has often spoken of the need for individual _______ and human rights in his speeches.a. free b. freedom c. freely d. freeing8. A/an _______ is an official ... achieve10. _______ is the study of the events of the past.a. Geography b. History c. Arts d. Literature11. She was the first in her family to enjoy the privilege of a university _____.a. schedule...