[ Grammar ]
Kevin’s really smart; he ___ speak three languages by the time he was six.
A. must
B. had to
C. could

Random Topics:
Possessive Adjective and PronounPresent Perfect Tense and Simple Past TenseModals of Obligation & ProhibitionWord FormationHabitual and Continuous TensesComparatives and SuperlativesVerb Tenses and Past ParticiplesDo not or Does notConjunctions & PrepositionsAdverbial Clause of MannerOther quiz:
Relative Clauses › ViewThe new textbook,_______ at the university book shop, includes access to online activities.
A. bought
B. buying
C. having bought
D. to buy
Vocabulary and Grammar › View
Black bears hunt other animals so they are ________.
A. prey
B. extinct
C. predators
D. hunt