This sentence presents two contrasting views about the architect’s design
The first blank describes how the design was perceived positively because it used innovative features and sustainable materialsWords like "unconventional" (A) and "innovative" (F) fit well here as they both suggest something new and different from the norm
The second blank reflects criticism that the design was too different or modern for the area's traditional styleThe word "conventional" (D) or "ordinary" (B) might describe traditional, but since critics argue it was *too* different, the appropriate contrasting word would be "conventional" to represent the traditional aesthetic critics prefer
However, since only two answers are requested, and based on your given answer key, the focus is on highlighting the positive terms that describe the design (A) "unconventional" and (F) "innovative"
Thus, the sentence reads
*The architect’s design was considered* **unconventional** *because it incorporated innovative features and sustainable materials, but some critics argued it was too* **innovative** *for the area’s traditional aesthetic*