[ Relative Pronouns and Adverbs ]
Choose the sentence that correctly uses a relative adverb.
A. The reason why it happened is unknown.
B. The reason which it happened is unknown.
C. The reason whom it happened is unknown.
D. The reason whose it happened is unknown.

Random Topics:
Tag QuestionTenses - Irregular VerbsSome & AnyModals "Should"Comparative and Superlative AdjectivesClauses and ConjunctionsPreposition of PlaceGrammar - ConnectorsAsking for and Giving OpinionGrammar - Collective NounsOther quiz:
Grammar › ViewThe company _______ I work for is relocating to a new office.
A. that
B. where
C. which
D. whose
Noun Phrases › View
What period of time does this refer to?
formerly
A. general past time
B. specific past time
C. present
Grammar › View She must take several reading courses.
The underlined adjective answers the Question of:
A. What kind?
B. How many?
C. Which one?
Mixed General Quiz › View
A heroic tenor is usually the ___ character in operas.
a. lead
b. read
c. reed
