[ Mixed General Quiz ]
The average elevation ___ Colorado is 6,800 feet above sea level.
a. of
b. at
c. on

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Present tense AffirmativePast Simple & Past ContinuousAuxiliary Verbs (be, do, have)Parallelism and Subject Verb AgreementDefinite and Indefinite ArticleAdverb of Frequency and Past Continuous TenseAdverb of TimePresent and Past TensesTenses and Figurative LanguageIF CLAUSEOther quiz:
Quantifiers & Modals of Obligation › ViewYou _ _ _ _ _ do something to solve this problem.
A. have to
B. ‘ve to
C. must
Tenses › View
We ____ basketball since 2:00pm.
A. Are waiting
B. Had waited
C. Have been waiting
D. Waiting
Grammar › ViewShall we ….. to Sally outside?
A. talk
B. talks
C. talked
D. talking
Modal Verbs › View
It ____ rain tomorrow.
A. should
B. might
C. must
D. have to
