[ Modal Verbs ]
The snake disappeared from the zoo some time on Thursday. ‘It ____ slipped out of the cage while the door was open.’
A. had to
B. should have
C. needn’t have to
D. must have
Select your answer:
Random Topics:
Vocabulary & Phrasal VerbPast Simple and Past Continuous TensesModal SpeculationSimple Past Tense and Past Perfect TenseGrammar and VocabulariesPast Simple or Past ContinuousConditional 0-ing / InfinitiveGiving and Asking for AbilityOther quiz:
Grammar › ViewHave they got children? — No, ___
A. they haven’t
B. they have
C. they have got
Vocabulary › View
You put the letter in this when you post it.
A. envelope
B. kite
C. paper
D. money