[ IN, ON & AT ]
Mobile phones became popular _____ the nineties.
A. IN
B. ON
C. AT
D. [ – ]

Random Topics:
ComparisionFew, a few, little, a littleConditional Sentences Type 1Clauses of ReasonWishes & Reported SpeechA(n), the, no articleSpellingNoun and Modal VerbsNouns FormationAsking & Giving AttentionOther quiz:
Past Tenses › Viewwhich one is past perfect tense?
A. She studied math that month
B. She had studied math that month
C. She was studying math that month
Grammar and Vocabulary › View
________ do you live now?
A. When
B. Why
C. Where
Tenses › ViewWe ____ in the doctor’s office for two hours before they called our name.
A. Been sitting
B. Had sat
C. sitting
D. Had been sitting
Grammar and Vocabulary › View
When I saw him, he _____ working; he was watching TV.
A. didn’t
B. wasn’t
C. isn’t
