Topics: Grammar for TOEFL
_____ of economic cycles been helpful in predicting turning points in cycles, they would have been used more consistently.
A. Psychological theories
B. Psychological theories have
C. Had psychological theories
D. Psychologists have theories
Select your answer:

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Would/would like - affirmative/negativeModals TensesPrepositionGrammar - too & enoughWestern Europe CountriesGrammar (was, were, could, could not)Articles A and AnInfinitives and GerundsGrammar-Verbs & Nouns Singular, Plural, GenderFirst Conditional SentenceOther quiz:
Grammar › ViewIn the sentence ‘That was the _______ moment of the game.’, which word should be used to fill in the blank?
A. most exciting
B. more exciting
C. excited
D. excitingly
Grammar › View
What is the irregular past tense form of “go”?
A. went
B. gone
C. goed
D. goed
