问题补充:
---- Could I take a few days’ leave, sir?
----- I’m afraid you can’t the work is being done.
A. until
B. before
C. after
D. as
答案:
A. until
B. before
C. after
(答案→)D. as
解析:考察连词辨析。A直到…才…B在…之前;C在…之后;D因为;结合句意可知D正确。句意:—先生。我可以请几天假吗?—恐怕不行,因为工作正在进行中。