<p>Mobile phone manufacturers’ attempts (to make) (their) products more appealing by implementing new forms of technology (has led) to great innovations in phone development. </p>
<p>I think there are two errors in this sentence. Someone help me out.</p>
<p>Most people think of hobbits as (fictional creatures), but (they actually) existed as homo floresiensis, (a long extinct species) that (once) lived among human beings. </p>
<p>The answer to this is no error, but can’t “they” refer to “people” or “hobbits”? Isn’t it ambiguous?</p>