单项选择题

Recent study shows that regular review leads to () performance on tests.

A.improve
B.improves
C.improved
D.improvement

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Do you believe that some fish can produce electricity strong enough to light a lamp or () run a small electric motor

A.further
B.rather
C.else
D.even
单项选择题
It isn't ()John says that annoys me but the way he says it.

A.how
B.that
C.why
D.what
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