Question

my son has always been a clever boy he ______ read when he was three(a) could (b) might (c) may​

Answer 1

$\huge\bold\pink{Hallo!}$

Here's your answer:

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My son has always been a clever boy.

He $\bf\underline\pink{could}$ read when he was three.

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Hope this cleared your doubt ✌

Answer 2

my son has always been a clever boy could read when he was three