[ Grammar ]
I think mobile phones are for people of all ages.
A. usage
B. usefully
C. useful
D. use

Random Topics:
Adverb of MannerClauses and ConjunctionPresent Forms and Narrative TensesGrammar and PrepositionSentence Types1st & 2nd ConditionalsAdverbs and Adverbial PhrasesTime ClauseAdverb or AdjectiveArticles & PrepositionOther quiz:
Adverb › ViewI met her ______ at the airport.
A. actually
B. afterward
C. soon
D. by chance
Preposition › View
We’ve got English ………. Thursday.
A. in
B. on
C. at