Select your answer:
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Grammar › ViewThe sun was thought _____ a ball of fire in the past, but now it is known _____ a glowing sphere of gases.
A. to have been, to have been
B. to had been, to be
C. to be, to have been
D. to be, to be
Grammar › View
What type of punctuation mark follows a transitional word or phrase?
A. Apostrophe
B. Semi colon
C. Period
D. Comma