[ Grammar ]
The striated ______ walls are the result of erosion and frost weathering having exposed layers of multicolored sedimentary rock.
Which choice completes the text so that it conforms to the conventions of Standard English?
A. patterns’ of a canyons
B. patterns of a canyons’
C. pattern’s of a canyon’s
D. patterns of a canyon’s

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Verb, Object, PrepositionPresent tense AffirmativePresent Simple and Present Continuous TenseAdverb of MannersFuture Tense - will and going toThere is or There areSentence Structure and Grammar RulesTransportation VocabularyGerund Subject or ObjectVerb to haveOther quiz:
Grammar › ViewWe wanted to arrive on time; ______, we were delayed by traffic.
A. so
B. however
C. but
D. therefore
Grammar › View
Please be quiet! The baby … sleeping.
A. is
B. are
C. am
