问题补充：
--- There is little water left in the bottle, ?
--- No, we need to buy some more before we run out of it.
A. is there
B. isn’t there
C. is it
D. isn’t it
答案：
(答案→)A. is there
B. isn’t there
C. is it
D. isn’t it
解析：句意：--瓶子里几乎没有水了，是吗？--是的，我们需要在用完之后再买一些。little的意思是几乎没有，表否定。反义疑问句，前否后肯。故选A.
