Choose A, B, C or D to indicate the correct answer to each of the following questions
Question:
Drinking water _________ excessive amounts of fluorides may leave a stained or mottled effect on the enamel of teeth.
-
A.
containing -
B.
including -
C.
made up of -
D.
composed of
Reference explanation:
Correct answer: A
Words that cause confusion
A: contains
B: included
C: make up
D: included
Drinking water containing too much fluorine can leave stains or spots on tooth enamel.
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