The first people to ___ in Nevada probably came about 12,000 years ago.
a. arrived
b. have arrived
c. arrive

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Verbs and PrepositionsShould, Should not havePrepositions after Verbs and AdjectiveGrammar ( going to)The Present Progressive TenseSubordinating ConjunctionGrammar - Present Perfect TenseArticles and QuantifiersVocabullary TestGrammar Like & Linking VerbOther quiz:
Gerund Noun › ViewThose workers stopped …………. their coffee because they felt tired of their new work.
A. Drink
B. drank
C. drinking
D. to drink
Modal Verbs and Contrastive Conjunctions › View
Which sentence correctly uses a modal verb and a contrastive conjunction?
A. They might go hiking if the weather is good, or they might stay home and watch a movie.
B. She should finish her homework, so she might go out with her friends afterward.
C. We can’t go to the beach because it’s raining, but we could go to the museum instead.
D. He must study for the test because it’s important, yet he might still fail.
Modals › View__________ you please turn off the lights when leaving the room?
A. Must
B. Should
C. Can
D. May
Grammar › View
“________ pencils over there are mine,” Meilin told her teacher.
A. This
B. That
C. These
D. Those
