سوال ۲ کنکور ارشد ریاضی ۱۴۰۰

The clause "he donates money to their organization every year" describes someone whose support is intense, devoted and enthusiastic, so the blank needs an adjective meaning "passionately committed".

• (1) zealous = filled with fervour, eagerly devoted to a cause. A zealous supporter is exactly a fan whose enthusiasm shows in yearly donations. ✔
• (2) anomalous = deviating from what is standard or expected, irregular. An "anomalous supporter" would mean an odd/atypical one, which does not explain the donations.
• (3) receptive = willing to receive or open to new ideas/suggestions. It describes openness to input, not active devotion; a supporter is giving, not receiving.
• (4) successive = following one after another in sequence (three successive years). It can modify countable events, not a person's degree of enthusiasm.

Exam trick: the reason clause after Because is the clue — pick the adjective that causes the stated behaviour (yearly donations ⇒ fervent devotion), not one that merely sounds formal.