If we ___________ renewable energy sources, we ___________ our carbon footprints.
A. used/reducing
B. will use/ reduce
C. are using/reducing
D. use/ will reduce

Random Topics:
Perfect TensesAdverb PhrasesGrammar: so and suchPast Simple and Past ContinuousRoot WordCorrelative Conjunction & Complex SentencesPresent Simple & Present ContinuousModal Verbs of PermissionConjunctions, Interjections and DeterminersPast Tense & Present Perfect TenseOther quiz:
Comparative and Superlative Adjectives › ViewComparative of “interesting”
A. more interesting than
B. the most interesting
C. interesting
D. interested
Grammar › View
Which sentence below is correct?
A. When did Roosevelt say, “We have nothing to fear but fear itself?”
B. When did Roosevelt say,” We have nothing to fear but fear itself”?
C. When did Roosevelt say, We have nothing to fear but fear itself?
D. When did Roosevelt say We have nothing to fear but fear itself
Which is written correctly?
A. Dear Ms. Lewis,
B. Dear ms lewis,
C. Dear, Ms. Lewis
D. Dear ms Lewis,
Comparison › View
The teacher speaks English ……………… than we do.
A. as fluently
B. more fluent
C. more fluently
D. as fluent
