[ Grammar ]
I have been sitting here three hours.
A. For
B. Since
C. About
D. To

Random Topics:
Adverbs and Adverbial PhrasesPhrasal Verb With TakeIrregular AdjectivesAdverb ClauseVocabulary and ModalsVerbs + Gerund or InfinitiveMixed TensesPossessive Pronouns and QuantifiersObject PronounsImperative SentencesOther quiz:
Verb Tenses and Modals › View“Trees do not only prevent flooding, they also produce cleaner air ___ of the oxygen they produce.”
A. when
B. because
C. as well as
D. If
Grammar › View
The open air concert had to be called _________ because of the weather.
A. on
B. out
C. off
Past Tenses › ViewWhen we ________________________________ (arrive) at the station, the train had already left.
A. arrived
B. had arrived
Grammar › View
Which word is spelled correctly?
A. hospitals
B. hosspitals
C. hospitles
D. haupitals
