[ Subject and Verb Agreement ]
The samples on the tray in the lab ______ testing.
A. need
B. needs
Select your answer:
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Comparison › ViewDeana is the …………………… of the three sisters.
A. most short
B. shorter
C. shortest
D. more short
Vocabulary › View
Pollution can ………. the air we breathe.
A. affect
B. tolerate
C. fluctuate
D. predate