来自陈动人的问题
【—Isthis_________interestingbook?—Yes,thisbookis_______interesting.A.an,anB./,/C.an,/D./,an】
—Isthis_________interestingbook?—Yes,thisbookis_______interesting.
A.an,anB./,/C.an,/D./,an


【—Isthis_________interestingbook?—Yes,thisbookis_______interesting.A.an,anB./,/C.an,/D./,an】
—Isthis_________interestingbook?—Yes,thisbookis_______interesting.
A.an,anB./,/C.an,/D./,an
C.aninterestingbook一本有趣的书,冠词限定名词.后一空interesting,形容词,不加冠词.