[ Vocabulary ]
Forces that are equal in size and opposite in direciton
A. Unbalanced Forces
B. Air Resistance
C. Balanced Forces
D. Bernoulli’s Principle
E. Constant
Select your answer:
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Grammar › ViewLet’s leave early, so we’ll be ahead of the rush of commuters. We can’t risk ———— in heavy traffic during rush hour.
A. holding up
B. being held up
C. having held up
D. to hold up
Grammar › View
My mother usually _____ a trip to America with my father every year.
A. take
B. takes
C. took
D. taking