[ Verb ]
Nathan knows he ______________________ new techniques in photography. (present perfect of learn)
A. Learned
B. Is learning
C. Will have learned
D. Will learn
E. Has learned

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Conditional Sentences › ViewIf it ____ warmer, we would go for a swim.
A. were
B. will be
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When I got home, my brother was playing ___ piano.
A. the
B. a
C. an
D. Ø (no article)