Question

no other thing is as useful as television (change to superlative)​

Answer 1

${ \red{ \bf{YOUR \: QUESTION}}}$

No other thing is as useful as television (change to superlative)

${ \green{ \bf{REQUIRED \: ANSWER}}}$

• Television is the most useful thing.

Hope it's helpful for you.

Answer 2

${\bold{\mathcal{\red{Television\:is\:the\:most\: useful\: thing. }}}}$

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Superlative adjectives are used to compare three or more nouns. They're also used to compare one thing against the rest of a group.