[ Present Continuous ]
His brother _________________exercise in the gym right now.
A. are doing
B. is doing
C. does
D. is does

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Grammar › ViewThese exercises build _______ and increase stamina.
A. leisure
B. muscle
C. puzzle
D. snowboarding
Subject Verb Agreement › View
Each year, Americans _(throws/throw)_ away more than 1 million tons of Styrofoam.
A. throw
B. throws