[ Present Simple & Present Continuous ]
You ___________that waiters are rude!
A. is always complaining
B. always complain
C. are always complaining
D. always complains

Random Topics:
Subordinating Conjunctions and ClausesGrammar PhrasesGerund or InfinitivePast Simple (to be)Past Progressive TensePossessive Adjectives VS Possessive PronounsSentence Types and ConjunctionsModals of DeductionGrammar (Adverbs, Prepositions, Prepositional Phrases)Future Tense VocabularyOther quiz:
Present Perfect Tense › ViewWe have _______ in this town for 10 years.
A. live
B. lived
C. living
D. lives
Grammar › View
Nobody answered the phone at the clinic. It _________________ closed early.
A. couldn’t have
B. should have
C. might have
D. need have
Modal Verbs › ViewHe’s not here right now, but he ______ be at the coffee shop.
A. have to
B. should
C. could
D. need to
Tenses › View
The nurses at the hospital _______ extremely caring.
A. is
B. are