[ Modal Verbs ]
I’m not sure, but it ………………… be poison in the glass.
A. must
B. may
C. might
D. can’t

Random Topics:
Verb IdentificationActive and Passive Gerunds and InfinitivesDirect-Indirect SpeechCountable - UncountableVerb Tenses and UsageOpinion / AgreementPresent Tense vs Past TensePresent Perfect and Simple Past TensePrepositional PhraseInfinitive and GerundsOther quiz:
Vocabulary & Grammar › ViewHuong is a Thai ethnic girl, so she _______________ perform the xoe dance easily.
A. Has to
B. must
C. should
D. can
Prepositions › View
James is very proficient _______ Mathematics.
A. at
B. in
C. on