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Grammar AssessmentSimple Past Irregular & NegativeGrammar: Have toQuestion TagsAdverbs and Time ExpressionsPrepositions and Prepositional PhrasesRelative ClausesPerfect Tenses of VerbsSimple Past or Past ContinuousVocabulary and IdiomsOther quiz:
Travel Vocabulary › ViewUnfortunately, our flight faced several __________ due to bad weather.
A. announcements
B. delays
C. passengers
Grammar › View
A major step towards ecological _______________ is to stop our unnecessary shopping.
A. sustainability
B. reality
C. potential
D. resource