[ Tenses and Articles ]
They ________ in tents.
A. aren’t slept
B. hasn’t slept
C. haven’t sleeped
D. haven’ t slept

Random Topics:
Adjectives & QuantifiersCan/CouldRelative Clauses and UsageGrammar and PunctuationModal Verbs - ObligationTime PhrasesGrammar - NounsSynonyms and VocabularyPast Progressive TenseRelative & Interrogative PronounsOther quiz:
Grammar & Vocabulary › View… my opinion, modern technology has improved all our lives.
A. In
B. On
C. With
D. From
Modal Verbs › View
Young people ______ obey their parents.
A. must
B. may
C. will
D. ought to
Grammar › ViewI strongly encourage everyone (see) this important film.
A. see
B. to see
C. seeing
Modal Auxiliary › View
You haven’t eaten all day. You …………………… be hungry. (certainty)
A. must
B. can
C. should
D. shouldn’t
