[ Grammar ]
He has a good __________ of complex mathematical concepts.
A. grasp
B. knowledge
C. comprehension

Random Topics:
Present Tense vs Past TenseClausesIndefinite ArticleVerbs: Will & Going toPossessive AdjectivesPrepositions after Verbs and AdjectiveAspect or tenses of VerbsPresent ContinousModal Verbs - ObligationPast Simple & Past ContinuousOther quiz:
Vocabulary › ViewThe process of getting better and stronger after an injury or illness.
A. Recovery
B. Hydration
C. Fitness
D. Diet
Grammar › View
There _______ a lighthouse in the town.
A. was
B. were
C. are
D. am not
Grammar and Vocabulary › ViewThose are ________.
A. cars fast
B. fast cars
C. fasts cars
Present Tense › View
Jo ________ eats meat. She is a vegetarian.
A. always
B. usually
C. often
D. never
