In an effort….. customers with respect we have changed our hours to accommodate customer needs.
A. to treat
B. treated
C. has treated
D. treating

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Comparatives or SuperlativesPresent Perfect TensePresent Perfect and Present Perfect ContinuousPossessive AdjectivesPresent Simple and ContinuousConditional TensesPast Simple & Past PerfectPronouns of QuantityFuture Tense VerbTOEFL Adjective and AdverbOther quiz:
Third Conditional › ViewIf they __ a map, would they have got lost?
A. have bought
B. had bought
C. had buy
D. have buy
Subject-Verb Agreement › View
You should decide which one of the three choices A, B, or C best _____ the question.
A. Answers
B. Answer
Where did you put __________ shampoo?
A. a
B. an
C. the
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Modal Verbs › View
In most developed countries,it is not necessary for people to boil water before they drink it.
A. In most developed countries,people ought to boil water before they drink it.
B. In most developed countries,people must boil water before they drink it.
C. In most developed countries,people needn’t boil water before they drink it.
D. In most developed countries,people mustn’t boil water before they drink it.