[ Grammar ]
Today, many serious childhood diseases ……………….. by early immunization.
A. are preventing
B. can prevent
C. prevent
D. can be prevented

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Present Continuous for FutureEnglish for TourismInfinitives and GerundsDefinite vs Zero Article Abstract NounsConditional Sentences and AdverbsGrammar and IdiomsGrammar ModalsVerb Tenses and ModalsPresent Perfect & Past Simple TenseFuture PlansOther quiz:
Subject Verb Agreement › ViewMy dad’s boss __________ him to work one Saturday a month.
A. require
B. requires
Phrasal Verb › View
Zhi Ning ___singing even after the music had stopped.
A. keep on
B. keep in
C. keep up
D. keep out