Grammar Quiz
[ General Knowledge ]

Mineral that enables blood to carry oxygen.

A. Calcium
B. Potassium
C. Iron
D. Magnesium

Select your answer:
A  B  C  D  E 

Random Topics:
Past Perfect Tense SubjunctiveHome vs. House Will or Going toRelative PronounPresent Simple Tense-ed and -ing AdjectivesFirst ConditionalSimiles and Body Idioms

Other quiz: Adjective

Sally looked very ___ in her new dress.

a. happily

b. happy

How to use : Read the question carefully, then select one of the answers button.