Despite its ------- and unassuming exterior, the building housed one of the most technologically advanced laboratories in the world.
- ornate
- modern
- modest (correct answer)
- imposing
Explanation: 'Despite' signals a contrast. The word in the blank should be similar in meaning to 'unassuming exterior' to contrast with the 'technologically advanced' interior. 'Modest,' meaning simple or unpretentious, is the best fit. 'Ornate,' 'modern,' and 'imposing' are all contrasts to 'unassuming' and would make the sentence illogical.