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A large number of inventions and discoveries have been made________accident.
A. in
B. by
C. at
D. on

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Tenses › ViewMake sure you close all the windows _______.
A. before you leave
B. until you will leave
C. after you had left
D. when you left
Grammar › View
I don’t know what kind of insect this is. It _________ some kind of ant.
a. might
b. might be
Grammar › ViewThe documentary Rize explores the origins and evolution of Krumping and Clowning, two dance forms that would have emerged from South Los Angeles.
A. NO CHANGE
B. emerged
C. will emerge
D. is emerging
Present Continuous Tense › View
He ………………………………..eating.
A. Am not
B. Is not
C. Are not
D. Be not