[ Relative Pronouns ]
This is the most interesting book ______ I have ever read on this topic.
A. that
B. who
C. which
D. where

Random Topics:
Sentence Structure and Verb TensesModal Verbs for PossibilityMixed GrammarModals Posibility and ProbabilityFirst & Second ConditionalPresent Simple Affirmative and NegativeSo Such Enough TooPrepositionCommasArticles & QuantifiersOther quiz:
Grammar › ViewThe _____ is the main word that is the focus of the sentence.
The _____ is made up of all the words that tell who or what is doing the action in the sentence.
A. simple predicate
complete predicate
B. compound subject
compound predicate
C. simple subject
complete subject
D. complete subject
simple subject
Vocabulary › View
having or showing a quick mind; bright, smart
A. triumph
B. clever
C. coast
D. pierce
Grammar › ViewFruit juices are … than sugary drinks.
A. healthy
B. healthier
C. more healthy
D. healthyer
Grammar › View
Gold isn’t ____________ as platinum.
A. more expensive
B. the most expensive
C. the more expensiver
D. as expensive