[ Grammar ]
Erosion, which washes away valuable topsoil, can be prevent by planting trees and grass. Which one is incorrect word/phrase?
A. washes
B. can be
C. prevent
D. grass

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Because / soPresent Perfect: for/since3rd Person SingularPreposition of PlaceTransitive and Intransitive VerbOrder of AdjectivesPassive Voice in Past and Present TenseVerb Tenses and UsageAdjectives and comparisonsSuperlativesOther quiz:
Modal Verbs › ViewYou _____ study hard if you want to pass the exam
A. must
B. can
C. should
D. ought to
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The difficult math problem _______ most of Mrs. Jackson’s students.
A. congratulates
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Grammar › ViewI went to the shopping center………….the shop was closed.
A. because
B. therefore
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By 2175 the temperature on the Earth _______ to 40°C all year round.
A. will rise
B. will have risen
C. will be rising
D. rises
