Hegra is an archaeological site in present-day Saudi Arabia and was the second-largest city of the Nabataean Kingdom (fourth century BCE to first century CE). Archaeologist Laila Nehmé recently traveled to Hegra to study its ancient__into the rocky outcrops of a vast desert, these burial chambers seem to blend seamlessly with nature.

Which option completes the text so that it conforms to the logical Standard English?

A) tombs. Built

B) tombs. Built.

C) tombs. Built,

D) tombs. built

When external forces are applied to common glass made from silicates, energy builds up around minuscule defects in the material, resulting in fractures. Recently, engineer Erkka Frankberg of Tampere University in Finland used the chemical__to make a glassy solid that can withstand higher strain than silicate glass can before fracturing.

Which choice completes the text?

A) compound, aluminum oxide,

B) compound aluminum oxide.

C) compound aluminum oxide,

D) compound aluminum oxide

Etched into Peru’s Nazca Desert are line drawings so large that they can only be fully seen from high above. Archaeologists have known of the lines since the 1920s, when a researcher spotted some from a nearby foothill, and they have been studying the markings ever since.__Archaeologists’ efforts are aided by drones that capture high-resolution aerial photographs of the lines.

Which choice completes the text with the most logical assembly?

A) Currently,

B) In comparison,

C) However,

D) Still,

Archaeologist Sue Brunning explains why the seventh-century ship burial site at Sutton Hoo in England was likely the tomb of a king. First, the gold artifacts inside the ship suggest that the person buried with them was a wealthy and respected leader.__the massive effort required to bury the ship would likely only have been undertaken for a king.

Choose the correct option?

A) still,

B) Instead,

C) Second

D) Second,

The more diverse and wide-ranging an animal’s behaviors, the larger and more energy-demanding the animal’s brain tends to be.__from an evolutionary perspective, animals that perform only basic actions should allocate fewer resources to growing and maintaining brain tissue. The specialized subtypes of ants within colonies provide an opportunity to explore this hypothesis.

Which option completes the text with the best logical transition?

A) Nevertheless,

B) Subsequently

C) Subsequently,

D) Thus,