[ Tenses ]
The brain (___) complex processes when concentrating deeply.
A. is performing
B. performs
C. performed
D. has performed

Random Topics:
Verb Moods and Vague PronounsConditional TensesTime PhrasesAdjective & AdverbsThe Simple Present TenseAsking and Giving OpinionSynonym and AntonymPunctuation and GrammarAdverbs of TimeComparatives ( adj/ adv)Other quiz:
Tenses › ViewWe were far more impressed by the pyramids during our visit to Egypt than we ____.
A. had been thinking
B. were thinking
C. had thought
D. are thinking
Present Simple › View
Elephants __________ leaves and grass.
A. eat
B. eates
C. eats
Grammar › ViewWhat change, if any, should be made to this sentence?
My dog is named firulais.
A. change firulais to Firulais
B. change dog to Dog
C. no change needed
Grammar & Vocabulary › View
Students …….only revise the night before an exam don’t usually get good grades.
A. who
B. which
C. where
D. why
