[ Subject-Verb Agreement ]
America and Russia (is / are) the most powerful nations.
A. Is
B. Are
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Modals of Obligation and Permission › ViewMy sister ______ buy a new dress for the party. She’s got none at the moment.
A. needs to
B. have to
C. is allowed
Grammar › View
__________ are you waiting for?
A. Who
B. Which
C. Ours
D. Mine
Grammar › ViewThey ________ (not have) a house of their own.
A. didn’t use to have
B. didn’t used to have
C. wouldn’t have
Grammar › View
The game will be canceled if not enough players show up.
A. active
B. passive