[ Tenses ]
We __________ all day before the bell rang. (study – past perfect progressive)
A. have been studying
B. were studying
C. had been studying
D. are studying
Select your answer:
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Mixed General Quiz › ViewSão Paulo ___ a major industrial, business-oriented, cultural and educational center.
a. is
b. there is
c. shows
d. concurs
Grammar › View
Robert Ballard was a scientist. “scientist” is a……
A. Pronoun
B. Noun
C. Verb
D. Preposition