[ Grammar ]
My brother ____________ wear a helmet when skiing. It’s optional when you’re over eighteen!
A. mustn’t
B. don’t have to
C. has to
D. doesn’t have to

Random Topics:
Modals - Reported Speech - ConditionalsSimple and Progressive Verb TensesSimilesFuture Tense and Conditionals-ed and -ing AdjectivesCan vs CouldPassive with ModalsVerb to Be Tenses & Object PronounHave to / Do not have toModals of AdviceOther quiz:
Modal Verbs › View‘That’s $200 dollars, sir.’ ‘That ___ right! Your website said $150.’
A. mustn’t be
B. can’t be
C. must be
Question Tag › View
Sami and I will help you,
A. won’t he
B. will he
C. won’t we
D. will we
Verbs and Prepositions › ViewWhich preposition correctly completes the sentence: “She worries _ her final exams.”
A. about
B. with
C. on
D. for
Grammar › View
Dr. and Mrs. Kwan ________ visited Spain _______ made stops in Paris and London.
A. both, and
B. not only, but also
C. either, or
D. neither, nor