[ Comparison & Modal Verbs in Passive Voice ]
Your phone ________ off before you enter the exam room.
A. must be to turned
B. must turned
C. must turn
D. must be turned

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Because of & Inspite ofModals of ObligationGrammar - help/have/let/makeModals of Necessity and SuggestionPresent Perfect or Past Simple TenseSuperlative AdjectivesModals and Past TensesTenses and StructuresPersonal Pronouns and VerbLanguage Features of an Opinion ArticleOther quiz:
Types of Sentence Structures › ViewAs I watched the girls, Susan planted the tulips, and Jessie planted the daffodils.
A. simple
B. compound
C. complex
D. compound-complex
Grammar › View
Find the error with subject-verb agreement. Select the incorrect verb.
The elaborately decorated tombs in ancient Egypt offers a glimpse into the history of the area’s wildlife.
A. decorated
B. offers
C. tombs
D. area’s