[ Modals of Obligation ]
Visitors _______ register in advance for the guided tour of the museum. However, they are free to come and visit without a guide anytime.
A. must
B. mustn’t
C. can
D. can’t

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Noun PhrasesDemonstrative SpeechAdverbial ClausesVerbs – Nouns – Adjectives - AdverbsPresent Simple with Adverbs of FrequencyGrammar RulesPresent Simple Positive and NegativeParts of SpeechGrammar-Verbs & Nouns Singular, Plural, GenderModals of Speculation and DeductionOther quiz:
Quantifiers › ViewCOMPLETE THE SENTENCE: ____________ water is there in the fridge?
A. How much
B. How many
Grammar and Vocabulary › View
He is as talkative as a _________ and often disrupts the class.
A. canary
B. nightingale
C. hawk
D. magpie
Reflexive pronouns › ViewYou can do it by _____ if you have to.
A. herself
B. yourself
C. themselves
Vocabulary › View
Alibi
A. to give emphasis or prominence to
B. an excuse, especially to avoid blame
C. examined or perused carefully
D. a beat or throb, as of the pulse
