[ Grammar ]
The __________ of the theory made it hard to understand.
A. clarity
B. simplicity
C. precision
D. abstract

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Prepositions of Location, Movement and TimeAdverbs and AdjectivesModals of PredictionAdverbs of Frequency & Simple Present TenseFuture Continuous, Future Perfect and Future Perfect ContinuousIrregular AdjectivesComparative & Superlative AdverbsProverbsWord Form & Verb TenseVerb Tense, Pronouns and AntecedentsOther quiz:
Coordinating Conjunctions › ViewI have a lot of trouble reading _____ writing.
A. and
B. but
C. for
D. or
Conjunction › View
I can’t go to the camp ____ I sprained my ankle while playing tennis.
A. because
B. although
C. as
D. therefore