问题补充:
---It’s a long time I last saw you.
---Yes, and it will be another month we can meet again.
A. before; when
B. when; since
C. since; while
D. since; before
答案:
A. before; when
B. when; since
C. since; while
(答案→)D. since; before
解析:考查连词。Before在……之前;when当……时候;since自从……以来;while当……时候;句意:自从我上次见过你以来,很久了。——是的,在我们又见面之前又有一个月了。结合语境可知选D。