[ 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:
Conjunctions › ViewAlex caught the ball ___ he threw it to Tina.
A. yet
B. and
C. for
D. or
Grammar › View
_____ films about writers are so dull is that writers don‘t dress up to practice their craft.
A. Everybody says
B. One of the reasons
C. It is often claimed
D. Because
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
