To reduce environmental waste and reliance on fossil fuels, chemical engineers are developing bioplastics made from plant starches like corn and sugarcane. In recent laboratory tests, these bio-based alternatives have shown great promise because they are designed to decompose quickly under compost conditions, release fewer greenhouse gases during their production, and _______
Which choice completes the text so that it conforms to the conventions of Standard English?
- leave no toxic residue in the surrounding soilCevap
- Bleaving no toxic residue in the surrounding soil
- Cthey leave no toxic residue in the surrounding soil
- Dthe avoidance of leaving toxic residue in the surrounding soil
Cevap
leave no toxic residue in the surrounding soil
The correct option is 'leave no toxic residue in the surrounding soil' because it uses the base verb 'leave,' which maintains the parallel structure established by the other verbs in the series, 'decompose' and 'release.' All three verbs function as infinitives controlled by the helper phrase 'are designed to' ('are designed to decompose... [to] release... and [to] leave...').
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Anahtar Kavram
Parallel structure requires that items in a list or comparison maintain a consistent grammatical form.
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