[ Grammar for TOEFL ]
The major cause _____ the pull of the Moon on the Earth.
A. the ocean tides are
B. of ocean tides is
C. of the tides in the ocean
D. the oceans’ tides

Random Topics:
Verb AgreementPassive Voice, Modals of Deduction and First ConditionalAdverbial PhrasesModals AuxiliaryVerb-ing and InfinitiveGrammar Like & Linking VerbNoun and Modal VerbsGrammar: was/wereSports VocabularyComparisionsOther quiz:
Toeic Verb › ViewSorry, James is not here. I think he ………….. ten minutes ago.
A. left
B. had left
C. was leaving
D. has left
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Annie was so busy that she did not notice that a giant moth had flown____her .
A. in
B. out
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D. through
Vocabulary › ViewAubrey was __________ pain medicine for her dislocated rib. She felt much better afterwards.
A. rendered
B. administration
C. animation
D. concoct
E. executed
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Choose the antonym of ugly.
A. weak
B. unique
C. pretty
D. nice
E. mean
