问题补充:
---What useful book !
---Yes, it is. But I find it difficult for me to read.
A. an, very
B. a, too
C. an, too
D. a, quite
答案:
A. an, very
(答案→)B. a, too
C. an, too
D. a, quite
解析:本题的上半句为感叹句,修饰名词book用what,名词为可数名词单数,需加不定冠词,useful第一个音为辅音音素,要用a,故不选AC,本题回答语的含义是我发现那本书太难了而看不了,too……to表示太……而不能……的意思,故本题选B。