[ Vocabulary and Grammar ]
Helen switches her mobile phone_____ so that she can study without interruptions.
A. on
B. off
C. up

Random Topics:
Simple Present and Present ContinuousDemonstrative Pronouns and Verb TensesReported - GerundGerund - to Infinitive Grammar : can, could and be able toPresent Perfect Continuous TenseIELTS GrammarIndependent/Dependent Clauses & Relative ClausesAdjectivesAnalogyOther quiz:
Grammar › ViewDefine a verb:
A. A state of being
B. An action word
C. A descriptive word
Grammar › View
I can’t stand ………………….. when it’s hot.
A. running
B. run