[ General Knowledge ]
The most common disease in man produced by acid attacking the enamel
A. Scurvy
B. AIDS
C. Dental Caries
D. Plaque

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Coordinating ConjunctionGrammar - Verb FormsGrammar: Defining Relative ClausesVerbsSuffixes and TensesIdiomsTOEIC Grammar and Vocabulary ReviewVerbal and Appositive PhrasesPast Simple and Past ContinuousModal Verb Gerund or To InfinitiveOther quiz:
Gerunds and Infinitives › ViewShe invited my ex _____ to the party.
A. to go
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Passive Voice with Modals › View
Broken glass ______ handled carefully to avoid injury.
A. can be
B. must be
C. may be
D. should be