[ Modal Verbs ]
There are no lights on and no one answers the doorbell. They ______ be at home.
A. Should
B. Must
C. Can’t
D. Could

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Sentence Fragments and Complete SentencesPrepotitionsFuture Perfect TenseQuantifiers & Modal VerbsGRAMMAR - Could / Could notPresent and Past Simple TensePast Simple & Past PerfectAdverbs, Infinitives, Definite ArticleAuxiliary Verbs & Question TagsGrammar AssessmentOther quiz:
Vocabulary › ViewIt rained persistently for 4 days straight. How much rain would you expect to see outside?
A. None
B. A lot
C. A little
Subject Verb Agreement › View
Politics __________ sometimes a dirty business.
A. do
B. did
C. is
D. are
Conjunctions › ViewIdentify the conjunction in the sentence.
I don’t really like vegetables, but I love fruits.
A. like
B. but
C. really
Possessive Adjective › View
The lawyer or his assistants will ask some questions about your case in … office.
- his
- their
- her
- its