[ Present Simple and Present Continuous Tenses ]
Water … if you heat it.
A. is boiling
B. is not boiling
C. doesn’t boil
D. boils

Random Topics:
Zero and First ConditionalsSimple Future - WillPrepositions of Place and TimeCountable & Uncountable NounsPunctuation and GrammarAdverbs of TimeAdverb or AdjectiveSimple Future - PassiveVocabulary : Coming & GoingGrammar PhrasesOther quiz:
Tenses › ViewThe swimming pool _____ at 7.30 every morning.
A. opened
B. opens
C. will open
D. is opening
First Conditional › View
She will ____ late
A. Arriving
B. Arrived
C. Arrive
D. Arive
Present Perfect Tense › ViewRonald and Maria have worked in the supermarket ___ two days.
A. Already
B. Yet
C. Since
D. For
Grammar › View
_______Ukraine _____Switzerland is in the European Union.
A. Either…or
B. Neither…nor
