问题
选择题
There's a big difference between saying you'll do something and doing it.
A．actually
B．frequently
C．gradually
D．certainly
答案
：A
：副词辨析。A实际上；B频繁地；C逐渐地；D当然；句意：在我们所说和实际上所做上有很大的差别。故A正确。
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