[ Subject-Verb Agreement ]
Adults _______ knowledge about their health and other personal concerns by watching TV.
A. gain
B. gains

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Grammar and Vocabulary › ViewYou don’t know the answer, _________?
A. does you
B. doesn’t you
C. do you
D. don’t you
Grammar › View
I __________ go to the party because I have no karate lessons tonight.
A. can
B. can’t
C. there is
D. there are