单项选择题
We were heartedly arguing about the financial matter, （）the telephone rang unexpectedly.
A. while B. as C, when D. as soon as
单项选择题 剑突水平平对（）
单项选择题 Most employees （）to work late on Friday
单项选择题 下列各项，不计入固定资产原始成本的是（）。
