Topics: Adverb and Noun Clauses
When ………………. is not known.
A. was the wheel invented
B. the invention of the wheel
C. inventing the wheel
D. the wheel was invented
Select your answer:
Random Topics:
Grammar - Sentence StructureGrammar ModalsVerb PhraseFuture Tense (will/be going to/p.continuous)Conditionals and WishesTravel VocabularySimple Past TensesSo Such Enough TooPhrasal VerbsGrammar - help/have/let/makeOther quiz:
Subject-Verb Agreement › ViewSelect the correct verb that agrees with the collective noun.
The audience of fans __________ disappointed in the performance.
A. is
B. are
Conjunction › View
Do you like fried noodles ____ porridge?
A. so
B. or
C. and
D. yet