Question

Fill in the blank with the correct preposition: She is allergic ......... cats.

• A. in
• B. with
• C. at
• D. to

Hint:

With adjectives like "allergic", "accustomed", "addicted", "opposed", always check the fixed preposition that follows them in common usage.

Answer 1

The Correct Option is D

Step 1 (Understand the grammar rule).
The adjective "allergic" is always followed by the preposition "to" when indicating the substance or thing causing the allergy.
Step 2 (Check each option).
(a) "in cats" — incorrect usage with "allergic".
(b) "with cats" — incorrect collocation.
(c) "at cats" — incorrect preposition here.
(d) "to cats" — correct collocation: "allergic to cats".
Step 3 (Construct the sentence).
"She is allergic to cats" is grammatically correct and idiomatic.
\[ {\text{to (Option (d)}} \]