Why does the author mention the hydraulic systems of the reservoirs?
A.They supplied irrigation from the Indian Ocean.
B.They became non-functional due to overuse.
C.They were destroyed by nearby warrior tribes.
D.They helped transport the sandstones for constructing temples.

II. Choose the word or phrase that best completes the sentence or substitutes for the underlined word or phrase.
A.satellite
B.artificial
C.heritage
D.ancient

III. Choose the word or phrase that best completes the sentence or substitutes for the underlined word or phrase.
The Great Pyramid ranked ______ the tallest structure on earth for more than 43 centuries.
A.in
B.of
C.at
D.as

III. Choose the word or phrase that best completes the sentence or substitutes for the underlined word or phrase.
There are rumors of buried ______ in that old house.
A.belongings
B.tomb
C.treasure
D.chamber

III. Choose the word or phrase that best completes the sentence or substitutes for the underlined word or phrase.
Each tower of the Ponagar Towers was ______ to a different god.
A.dedicated
B.distributed
C.delivered
D.contributed

Since they had spent too many time considering the contract, the students lost the opportunity to lease the apartment.
A.spent
B.many
C.the
D.lease

III. Choose the word or phrase that best completes the sentence or substitutes for the underlined word or phrase.
The current constitutional problem is ______ by the top legal minds in the country.
A.studying
B.being studied
C.being studying
D.been studied

III. Choose the word or phrase that best completes the sentence or substitutes for the underlined word or phrase.
If it keeps on raining, the basketball game ought ______.
A.to postpone
B.to be postponed
C.postpone
D.be postponed

III. Choose the word or phrase that best completes the sentence or substitutes for the underlined word or phrase.
The first question must ______ before you attempt the others.
A.be answered
B.have answered
C.answer
D.to answer

III. Choose the word or phrase that best completes the sentence or substitutes for the underlined word or phrase.
The floor in the room was so dirty as if it ______ for days.
A.hadn't swept
B.wouldn't have swept
C.haven't been swept
D.hadn't been swept