[ Adverb and Noun Clauses ]
…………..added to a liquid, antifreeze lowers the freezing temperature of that liquid.
A. That
B. As is
C. It is
D. When

Random Topics:
Intensifiers: Really vs VeryPresent Simple, Present Continuous or Present PerfectPunctuationsContrastive ConjunctionVerb Tenses and Sentence StructureDefinite, Indefinite and Zero ArticlesGerund/ To Verb/ VerbPersonal PronounsRelative Clauses and Past PerfectPresent Perfect and Present Perfect ContinuousOther quiz:
Grammar › ViewBefore he went into the surf, Ben set down the surfboard that he had
repaired last week and waxed it on the sand.
Which happened first?
A. Ben went into the surf.
B. Ben set down the surfboard.
C. Ben repaired the surfboard.
D. Ben waxed the surfboard.
Must / must not › View
You … be rude to your parents
A. must
B. mustn’t
Gerund vs Infinitive › ViewWe could … sign language to communicate with Betty.
A. to learn
B. learn
C. learning
Grammar › View
The boat captain docked the ship.
A. complete subject
B. complete predicate
C. simple subject
D. simple predicate
