_____ 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
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Grammar › ViewThey say that a good photograph would be better.
The underlined word is…..
A. Adverb
B. Adjective
Grammar › View
Is the following fragment missing the subject or verb?
fell off the ladder on the side of the barn
A. subject
B. verb
Grammar › ViewYour library books are overdue. You _____ if you return those books immediately.
A. will not fine
B. will not fined
C. will not be fined
D. will be not fine
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What is th outermost layer of the Sun’s atomsphere, located above the chromosphere?
A. Corona
B. Photosphere
C. Chromosphere
D. Troposphere