[ Have to / Do not have to ]
Which one is question form of have to?
A. Do/does + S + have to + Verb bare
B. Have to/ Has to + S + Verb bare

Random Topics:
Passive VoicesIndependent/Dependent Clauses & Relative ClausesTag QuestionContrastive ConjunctionsVerb BEWho or WhomPresent Simple Affirmative and NegativePassive Voice and Relative ClausesSimple Present & Present ProgressiveCan vs CouldOther quiz:
Grammar › ViewMy friends _______ many board games.
A. have
B. has
Word Form & Verb Tense › View
Her job is to detect and analyse any threat to public _____ such as floods, earthquake, and even pollution
A. safety
B. safe
C. safely
D. unsafe
Prepotitions › Viewpleased
A. of
B. with
C. on
Grammar › View
Do you know the shop __________ Andrew picked me up?
A. which
B. when
C. where
D. why
