[ Passive Voice ]
Someone must ____ the door. They are waiting there.
A. be opened
B. open
C. opened
Random Topics:
Articles & PrepositionDegree of ComparisonSynonymsArticles and NounsConnectivesVocabulary : Coming & GoingPresent Perfect or Past SimpleAsking and Giving OpinionGrammar, adverbs of frequency placementGerunds in SentencesOther quiz:
Progressive Perfect and Simple Verb Tenses › ViewWhich perfect tense is the following sentence written in? I will have eaten lunch by the time you arrive.
A. past perfect
B. present perfect
C. future perfect
Grammar › View
A pitcher plant is a plant that ________ small animals.
A. trapped
B. traps
C. is trapped