<p>In Angkor, Cambodia's ancient city, a (clever) designed reservoir, five miles long and one mile wide, (supplied fish) (and) helped farmers (to produce) three corps of rice annually.</p>
<p>Okay so A-CLEVER is wrong.</p>
<p>Is it because it's suppose too be "cleverly?"</p>
<p>Thanks. Explain</p>
<p>Yes it is supposed to be cleverly. That word is describing HOW it’s designed, so that’d be an adverb rather than an adjective.</p>
<p>Yup, you’re correct.</p>
<p>“Clever” is an adjective. However, it is not modifying a noun, it is modifying a verb (“designed”). Therefore it has to be in the form of an adverb: “cleverly”.</p>
<p>thanks!</p>
<p>10char</p>