[ Past Modals ]
The movie theater _______________ full because there were still tickets for sale.
A. could have been
B. must not have been

Random Topics:
Must Vs Have toPreference & Future TenseAdverbs and Time ExpressionsPassive Voice - Present Simple and Past SimplePresent Perfect Simple and ContinuousPast Simple, Past Continuous, Past Perfect, Past Perfect ContinuousGerund Subject or ObjectPast simple - Irregular VerbsThe Present Progressive TenseTenses and QuestionsOther quiz:
Subordinating Conjunctions › View“Stay here until I come back.”
A. Stay
B. Here
C. Until
D. Back
Grammar › View
Identify the correct type of phrase.
We ran through the field and over the bridge.
A. prepositional phrases
B. appositive phrases
Did you …… in the Mt Bromo yesterday?
A. Go
B. Goes
C. Went
D. Gone
Vocabulary and Grammar › View
He is driving so fast: he may endanger other_______.
A. means of transport
B. road users
C. zebra crossing
D. railway station
