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

Random Topics:
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:
Conditionals › ViewIdentify the type of conditional in the following sentence: ‘If I study hard, I will pass the exam.’
A. Zero Conditional
B. Third Conditional
C. Second Conditional
D. First Conditional
Mixed General Quiz › View
I love him in ___.
a. always
b. all ways
Tell the ___ truth and nothing but the truth.
a. hole
b. whole
Present Simple › View
Louise ________ a pilot.
A. am
B. is
C. are
