[ Grammar ]
Identify the following sentence as simple, compound, or complex.
Nuclear reactions within the sun produce its energy.
A. simple
B. compound
C. complex

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Past Tense vs Present TenseEnglish for TourismSentence Types and ConjunctionsThe Present Progressive TenseModals VerbsZero and First ConditionalsTAG QuestionsDegrees of ComparisonAuxiliaries VerbTOEIC Grammar and Vocabulary ReviewOther quiz:
Present, Past, and Future Time › View¿CUALES SON LOS AUXILIARES USADOS EN EL PRESENTE PERFECTO?
A. HAVE – HAS
B. DO – DOES
C. WILL
D. DID
Prepositions › View
He was in contact with the base _______ the entire flight.
A. since
B. during
C. across
D. while
Grammar › ViewThis word means ready and able to resort to arguing or violence.
A. mollify
B. gingerly
C. derogatory
D. pugnacious
Grammar › View
Mumps …….. a very common disease which usually affects children.
A. is
B. are
