[ Modals ]
He _____ call his parents every Friday.
A. must
B. have to
C. used to
D. had to

Random Topics:
ComparisonArticles and DeterminersConjunctions, Prepositions and InterjectionsPast Simple, Present Perfect TenseCausative VerbVerb and PrepositionMixed Present TensesImperative Sentences3rd Person SingularSubject and Verbs AgreementOther quiz:
Grammar › ViewChris is _____ the best employer.
A. far
B. by far
C. much
Irregular Verbs › View
I’ve always ______________ cats are smarter than dogs.
A. thinking
B. think
C. thought