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The helicopter landed on ___________ roof of a building.
A. a
B. an
C. the
D. –

Random Topics:
Subject Verb Agreement & Subjunctive MoodComparatives and ConjunctionsAdverb of TimeArticles and QuantifiersQuestion WordsRelative Clauses and etcNeither/Either/All/NoneModals, Infinitives and GerundsHas and HaveGrammar - Reflexive PronounsOther quiz:
Vocabulary & Grammar › View__________ this diet consists of non-meat food sources, a vegetarian typically consumes less fat and cholesterol than an individual who consumes meat.
A. Consequently
B. Because
C. Furthermore
D. Instead
Grammar › View
A:What’s wrong with Judy? She just went ______ us without ______ hello to us. B:Maybe she just didn’t notice(注意到)us.
A. between; to say
B. past; saying
C. straight; saying
D. past; said
