I hope there are enough glasses for each guest to have .A. itB. thoseC. thenD. one

问题补充：

I hope there are enough glasses for each guest to have .

A. it

B. those

C. then

D. one

答案：

A. it

B. those

C. then

(答案→)D. one

解析：用one代替前面提到的可数名词。