Question 2 of 4 in this topic

Difficulty: MediumVerb Tense

In order to prevent nonnative fish species from moving freely between the Mediterranean and Red Seas, marine biologist Bella Galil has proposed that a saline lock system be installed along the Suez Canal in Egypt’s Great Bitter Lakes. The lock would increase the salinity of the lakes and _______ a natural barrier of water most marine creatures would be unable to cross.

Which choice completes the text so that it conforms to the conventions of Standard English?

Want a deeper, personalized explanation?

Open the app to get an AI-powered explanation tailored to your mistakes.

Open the app
← Previous questionNext question →
Practice all Verb Tense questions