[ Modal Verb Gerund or To Infinitive ]
The room ________ once a day.
A. should clean
B. should be cleaned
C. should be cleaning
D. should have cleaned

Random Topics:
Compound Words and SentencesGerunds/InfinitivesFirst ConditionalsSentence Structure and PunctuationAcademic VocabularyAdverbsSubordination ConjunctionsHave as verb and auxiliaryActive vs. Passive VoiceGrammar - Compound SentencesOther quiz:
Grammar › View…………apple juice is there in the fridge?
A. How many
B. How much
C. How
Past Tense › View
When I got home, my parents ____________on the sofa.
A. was siting
B. were siting
C. were sitting
D. was sitting
