He writes on both sides of the sheet to ________ paper.
A. converse
B. convert
C. conserve
D. consent
The computer laboratory is an essential ______ for students.
A. source
B. force
C. resource
D. reinforce
After a ______ debate, members of the committee finally voted to approve the funding.
A. contentious
B. abstentious
C. contented
D. contended