Topics: TOEFL
Researchers have long debated _____________ Saturn’s moon Titan contains hydrocarbon oceans and lakes.
A. over it
B. whether it
C. whether
D. whetherover
Select your answer:
Random Topics:
Past Perfect & Past SimpleGrammar ErrorsSuperlativesPresent Simple Affirmative and NegativePassive Voice - Past SimplePrepositions & Prepositional PhrasesPreposition FormDo not or Does notComparison & Modal Verbs in Passive VoicePresent Perfect or Past Simple TenseOther quiz:
Pronouns and Subject Verb Agreement › ViewHooray! Several of my drawings ________ displayed in the school art exhibit!
A. are
B. is
Sentence Structure › View
Dominique loves hiking in the mountains, ___ she is moving to Colorado.
A. so
B. and
C. yet
D. for