Q. He is good . . . . . . . . fixing things.
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Correct Answer: (D)
at
Explanation: 'Good at' is a particular idiomatic expression which means you have good skills in doing something. Hence it makes the sentence meaningful.
Explanation by: Team MCQ Buddy
'Good at' is a particular idiomatic expression which means you have good skills in doing something. Hence it makes the sentence meaningful.