[ Tenses ]
Systematic ocean exploration in the United States of America ____ in 1807 when Thomas Jefferson ___ the survey of the coast.
A. will begin / will authorize
B. began / authorized
C. has begun / has authorized
Select your answer:
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Modals of Obligation and NecessityPrepositions and Preposition PhrasesModal Verbs in Emergency SituationsGerund or InfinitiveGrammar - Present PerfectHow many / How much - Is there / Are thereIndefinite PronounsPersonal & Possessive PronounsGrammar (Possessive Pronouns)Tenses of VerbsOther quiz:
Grammar › View_________ always late to class!
A. There
B. Their
C. They’re
Present Simple & Present Continuous › View
It ________________ cats and dogs. We’d better stay at home.
A. rains
B. is raining