[ Grammar ]
__________ is knocking on the door?
A. Who
B. Whom
C. Someone
D. Whose

Random Topics:
Past and Present TensesPast Simple TensesArticles and QuantifiersAdverbial Concession ClausesArticles A and AnBecause of & Inspite ofTenses, Tag Questions, Phrasal VerbsPRESENT SIMPLE - CHILDRENCountable Vs Uncountable NounsNouns FormationOther quiz:
Vocabulary › ViewSpecific information, examples, or evidence that support a main idea.
A. Supporting Detail
B. Literal Language
C. Allusion
D. Metaphor
Grammar › View
I _________ in Switzerland
A. have never been
B. have never gone
C. never went
D. never was