[ Grammar ]
Mobile phones were invented _______ the 20th century
A. at
B. in
C. on

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Conjunctive AdverbClause Markers TOEFL GrammarWould rather/ would prefer/ would likeVocabulary Spelling GrammarGrammar - may & mightIF CLAUSEDescriptionsComparison & Modal Verbs in Passive VoicePrepositions after VerbsGrammar - Wh QuestionsOther quiz:
Grammar › ViewYou _____ pass this bridge, the Dragon forbid you!
A. will
B. won’t
C. shall
D. shall not
Grammar › View
He went _____ deliver the message that he still loved the old store.
A. into
B. in to
Homonyms › ViewTell the ___ truth and nothing but the truth.
a. hole
b. whole
Present Simple › View
Louise ________ a pilot.
A. am
B. is
C. are