Missouri is sometimes called “The Gateway to the West” ___ it was the eastern end of such settlement routes as the Santa Fe Train and the Pony Express mail system.
b. due to
Abstract vs. Concrete Complement vs. Compliment Subject, Verb & Object Complement Present Simple: affirmative, negative, interrogativeGrammar ClausesModal PerfectRegular Plural NounsPresent SimpleConditionals Type I
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