第6题: [单项选择]There was (a pause of) complete stillness (which) the (buzzing of) the bees among the pink loses sounded (as loud as) the fight of an aircraft. A. a pause of B. which C. buzzing of D. as loud as 参考答案:B 答案解析:which改为when。先行词a pause是表示时间的词,所以定语从句引导词用 when。