Topics: Zero Conditional
THE CORRECT FORM IS:
A. When water reaches 100ºC, It boils
B. If water reache 100ºC, It boil
C. If water reaches 100ºC, It boils
D. When water reache 100ºC, It boils
Select your answer:

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Grammar › ViewWhat is the predicate (verb) in the sentence?
The wind has been blowing for several hours.
A. the wind
B. hours
C. several
D. has been blowing
Vocabulary › View
to assist someone do something.
A. help
B. hinder
C. obstruct
