[ 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:
Past Simple & Past ContinuousVocabulary and GrammarComparative Adjectives and AdverbsAdverbial Clause, Noun ClauseTenses (Present, Past, Future Forms)Verb ConjugationPresent Simple with Adverbs of FrequencyTemporal Conjunctions and ConnectivesVocabulary and Idiomsa, an, the, zero articleOther quiz:
Grammar TOEFL › ViewWe can see many beautiful paintings in this exhibition. They were ________ by famous Indonesian painter.
A. painting
B. painted
C. paint
D. be painting
Grammar › View
We use __________ to __________ for things online.
A. search; the Web
B. magazines; watch
C. watch; magazine
D. the Web; search
Verbs: Action, Linking, and Helping › ViewWhat type of verb is the underlined verb?
During the winter, my dad shovels the snow on our driveway.
___
A. action verb
B. helping verb
C. linking verb
Grammar › View
My mom _______ to the beach last week
A. Goes
B. Goed
C. Went
D. Has been
