[ Modal Verbs ]
if you aren’t allowed about what modal verb to use to express obligation the best option is:
A. have to
B. must

Random Topics:
Will and Will notModal Verbs and ConditionalsFirst Conditional, Future Time ClausesAuxiliary Verbs (be, do, have)Present TensesHow much and how manyGrammar, Conditional Sentences, VocabularyQuestion TagsPrepotitionsSuperlativesOther quiz:
Vocabulary › Viewto show that you think someone or something is not worth respecting
A. resources
B. scorn
C. establish
Adverb Clauses › View
Identify the subordinate clause in the sentence:
You must do the grammar lesson unless you have already mastered it.
A. unless
B. do
C. mastered
D. lesson
Vocabulary › ViewHe gave no hint that he was in pain.
A. purpose
B. clue
C. target
D. affair
E. wage
Possessive Pronouns › View
This computer game belongs to me and my brother. This computer game is _____________________
A. mine
B. yours
C. ours
D. theirs
