【题目】—Are you worried about his safety?
—Only ______.
A.gradually
B.broadly
C.slightly
D.extremely

【答案】C
【解析】考查副词。A. gradually 逐渐地；B.broadly宽阔的C.slightly 稍微D.extremely非常，句意：--你对他的安全担心吗：--只有一点。故选C。