[ Gerund/ To Verb/ Verb ]
May I suggest you let_______
A. Mary doing so
B. Mary to do so
C. Mary do so

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Passive and Active VoiceGrammar, Literature, and VocabularyTransitive or Intransitive VerbsCan, Could, May, MightNoun Clauses with THATGrammar (Adverbs, Prepositions, Prepositional Phrases)Grammar and IdiomsNoun and Modal VerbsPast Continuous and Past Simple TenseTime ExpressionsOther quiz:
Vocabulary and Tenses › Viewthe class … the documentary film next monday
A. will have watched
B. would have watched
Prepositions and Phrasal Verbs › View
He did not come …… until five hours after the accident.
A. up
B. through
C. by
D. round