[ 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:
SynonymsFigure of SpeechSimple Past ContinuosRelative Clauses and UsageIntensifiers: Really vs VeryContrastive ConjunctionsAdjectives vs AdverbsSimple Past or Past Continuousgoing toOther quiz:
Grammar › ViewIs he the man __ computer was stolen?
A. that
B. which
C. whose
Grammar › View
What is the complete subject in the sentence?
My mischievous sister has a trick up her sleeve.
A. mischievous sister
B. has a trick up her sleeve
C. My mischievous sister
D. sister