To test eggs, them in a bowl of water: if they float they’re bad, if they sink t
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To test eggs, _______ them in a bowl of water: if they float they’re bad, if they sink they’re good.
A. put B. putting
C. to put D. to be putting
试题答案
A
句首的 to test eggs 为目的状语，填空句为祈使句谓语，故要用动词原形。