[ Grammar ]
A theory ——- only when a hypothesis ——- by consistent results from many observations or experiments.
A. may have been developed / was being supported
B. can be developed / has been supported
C. will be developed / was supported
D. has been developed / had been supported
E. had been developed / might have been supported
Select your answer:

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Future TensesNouns, Pronouns, Antecedents, and Singular and PluralSimple Future - WillComplex Sentences with Adverb ClausesRelative Pronouns with PrepositionsFuture Continuous, Future Perfect and Future Perfect ContinuousTenses - AuxiliariesClauses and ConjunctionVerbs and TensesGrammar (Possessive Pronouns)Other quiz:
Grammar (Possessive Pronouns) › ViewSusan painted ________ room in yellow but I painted _______ in pink.
A. his, her
B. her, my
C. mine, my
D. his, mine
Idioms › View
To speak to someone without letting them answer is to ___.
a. talk over
b. talk at
c. talk to
