[ Grammar ]
Although phosphorous is an essential constituent of all living creatures, —- is among the least abundant of the mineral nutrients.
A. what
B. it
C. still
D. however

Random Topics:
Similes and Body IdiomsPreposition FormAdjectives and AdverbsMoods of GrammarProgressive Verb TensesNarrative, Past TensesVerb Patternsso vs suchThere is or There areSimple Future TenseOther quiz:
If Conditionals › ViewYou (won’t do well/ don’t do well) on your test if you don’t study.
A. won’t do well
B. don’t do well
Subject Verb Agreement › View
Identify the object in the sentence “The dog chased the cat.”
A. The dog
B. Chased
C. The cat
D. None of the above