-He seems to be doing nothing buthe is just waiting for his chance.A. actuallyB. graduall

问题补充：

-He seems to be doing nothing, buthe is just waiting for his chance.

A. actually

B. gradually

C. frequently

D. certainly

答案：

(答案→)A. actually

B. gradually

C. frequently

D. certainly

解析：副词辨析。A实际上；B逐渐；C频繁地；D当然；句意：他似乎什么都没有做，但实际上她在等待他的机会的出现。根据句意说明A正确。