[ Modals for Obligation ]
I ______ forget to take my key with me.
A. must
B. mustn’t
C. don’t have to
D. have to

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Present Simple and Past ContinuousPronouns and Subject Verb AgreementIntensifiers: Really vs VeryPronouns and QuantifiersPresent/Future/Past Simple/Present PerfectPassive Modals in Different TensesComparative AdverbArticles and DeterminersArticle the or zero article (-)Grammar of Conjunctions and PrepotitionsOther quiz:
Pronouns and Antecedents › ViewThe school has asbestos in many of _______ classrooms.
A. one’s
B. their
C. its
D. her
Grammar › View
Snakes ___ lizards are cold-blooded animals.
A. or
B. but
C. and
D. because
Appositive Phrase › ViewHis wand was given to him by his former student, Gino.
A. Prepositional
B. Appositive
C. Neither
Grammar › View
My motorbike broke down yesterday, so I__________catch a taxi to school.
A. should
B. ought
C. must
D. has better
