Topics: Gerund and Infinitive
The guard refused ___________________ (let) them enter the building.
A. let
B. to let
C. to letting
D. letting
Select your answer:

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Present Perfect and Present Perfect ContinuousRelative Clauses and UsageCompound and Complex SentencesDEGREE COMPARISONVocabulary and DefinitionsPast Perfect vs Past SimpleGrammar - Verb FormsIF CLAUSEIdentifying Sentence TypesGrammar - Punctuation of SentencesOther quiz:
Adverbs of frequency › ViewMaria goes to Starbucks __________. She goes there with her friends 4 days a week.
A. usually
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D. sometimes
Grammar › View
Pick the noun in the following sentence: “The evidence was conclusive.”
A. was
B. conclusive
C. evidence
D. the
