[ Grammar ]
Those audiences ____ show their tickets before entering the concert hall.
A. have to
B. must
C. ought to
D. don’t have to

Random Topics:
Grammar - FragmentsRelative Clauses and Past PerfectSentence LabelingRun-On SentencesNouns, Articles, DeterminersPresent Simple and Present Continuous TensesGrammar / PronounsInfinitives or GerundsVerb BETenses and Word FormationOther quiz:
Grammar › ViewThe Himeji Castle ______ built in the 14th century.
A. was
B. were
C. had been
D. has been
Vocabulary › View
The term “lackluster” describes something that is:
A. Shining brightly
B. Dull or uninspired
C. Colorful and vibrant
D. Noisy and disruptive
Modal Verbs › ViewJohn ________ your car keys. He hasn’t even left the house.
A. can’t take
B. mustn’t take
C. can’t have taken
Tenses › View
When talking about a completed event where an exact time is given or is obvious, we use:
A. Present continuous
B. Past continuous
C. Present simple
D. Past simple
