Your advice would be ______valuable to him, who is now at a loss as to what to do first.
【正确答案】 B
【答案解析】你的建议将会对他非常有用，因为他现在不知道首先应该做什么。A excessively“(贬)过分地” B．exceedingly“非常，极其”C．extensively“广泛地”D．exclusively“排他地，专有地”