[ Modals of Obligation & Prohibition ]
He _____ wear a helmet when riding his bike.
A. must
B. can

Random Topics:
Prepositions and AdverbsReflexive pronounsVocabulary, Adjective & PrepositionSubordinate ConjunctionsPossesive Pronouns and Modals of AbilityPresent Simple Affirmative and NegativeVerbs & Phrasal Verbsa, an, the, zero articleSimple Present and Present Continuous TensePresent Simple and Present Continuous TensesOther quiz:
Grammar › ViewThe lion is hungry . It …… (roar) loudly
A. Is roaring
B. Are roaring
Idioms › View
She has a serious obsession about men.
a. harsh
b. heavy
c. hang-up
Does Intan ___ a pair of Adidas new version of 2018?
A. has
B. had
C. have
D. having
Modal Auxiliary › View
Erwin …. lend Reiner money. He never pay back
A. will
B. won’t
C. would
D. wouldn’t
