[ Grammar for TOEFL ]
Kettledrums, what were first played on horseback, were incorporated into the orchestra in the eighteenth century.
A. what
B. played
C. were
D. into the

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Fragment, Comma Splice and Run -on SentenceParticiple AdjectivesNoun ClauseModals, Phrasal Verbs, Gerunds and InfinitivesPersonal PronounsMust / must notGrammar - SimilesGrammar (Adjectives)Figurative Language VocabularyGrammar Error Correction (Simple Present Tense)Other quiz:
Vocabulary › ViewTo ……………………… is to join with or combine.
A. portray
B. interpret
C. incorporate
D. feature
Gerund vs. Infinitive › View
They prohibit …………… inside the building.
A. Smoking
B. To smoke
C. Smoke
