Because even his ____________ would be loath to consider his novels ____________, either the reviewer of his latest work has been ethically compromised, or the author has actually plotted what can, in all positive senses of the word, be described as a thriller.
Blank (i)
staunchest advocates
most implacable opponents
most sympathetic detractors
Blank (ii)
dishonest
riveting
straightforward
either后面的一句话要理解清楚,ethically compromised表明reviewer是dishonest的,actually plotted what can, in all positive senses of the word, be described as a thriller表明这个author的作品居然thriller(actually表明一种surprising,说明通常情况下这个author的作品是boring的)。连起来意思就是because even his staunchest advocates will consider his novels boring(=loath to consider his novel riveting), either reviews is lying or his recent work is indeed excellent.