[ Tenses ]
They __ (not/arrive) yet, but they should be here soon.
A. aren’t arriving
B. don’t arrive
C. haven’t arrived
D. haven’t been arriving

Random Topics:
Complex Sentences with Adverb ClausesGerund & ParticipleWish SentenceSingular and Plural NounsIf Conditional Zero and OnePresent Perfect, Present Simple, Present ContinuousNumbersSubject and Verb AgreementLanguage Features of an Opinion ArticleVerbs: Will & Going toOther 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
Future Continuous, Future Perfect and Future Perfect Continuous › View
In one month, I ________________ (do) my course for two months because I have just started it
A. Won’t be doing
B. Won’t have done
C. Won’t have been doing