[ 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

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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:
Grammar › ViewMy friend asked me ______ much the lessons cost.
A. How
B. what
C. when
Mixed General Quiz › View
“Texas, Our Texas” is ___ state song.
a. a
b. an
c. the
Which 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