[ Preposition ]
A preface …… a book introduces the book.
A. By
B. To
C. Of
D. Over

Random Topics:
going toPresent Simple or Present ContinuousModals: Possibility, Necessity, ExpectationVerb BEPassive Voice and ModalsGrammar on ConditionalsTenses and StructuresTenses and QuestionsModals - Reported Speech - ConditionalsPoetry VocabularyOther quiz:
Grammar › ViewIt it ___ tomorrow, I will not have to water the plants.
A. will rain
B. is raining
C. would rain
D. rains
Time Clauses of Future › View
Before my mum … home tonight, I will clean the kitchen.
A. get
B. will get
C. gets