I think koalas are cute.改为否定句

I think koalas are (very interesting)句子成分 英语考试问题：I don't think koalas are cute.为什么这个句子里有2个动词?koalas are cute是宾语c从句 I think koalas are cute.改为否定句 请问选择哪个答案合适；I think koalas are ____funny?请问选择哪个答案合适,为什么?I think koalas are ____funny?A.kind of B.a kind of C.kinds of D.the kind of i like koalas because they are cute. I hear one of the koalas -------- a baby .A.there`s B.there are C.haveD. I don't think koalas are ( )funny.A.kind of B.a kind of C.kinds of D the kind of 答案是选的D,为什么选D呢,这句话怎么解释呢, I don't think koalas are （the kind of） funny为什么用“the kind of ,A kind of B a kind of C kinds of ,为什么不选用ABC中的一个呢,帮我解释下呢, 求英语高手解答,说明原因!I think the koalas are very interesting.(对划线部分提问）——划线部分为：interesting___ _____ _____ ______ _____ the koalas? koalas are form ___________ koalas are from __ I like koalas because they are cute(对because they are cute提问） I think thrillers are I like koalas because they are a kind of cute这种题是最后一道 koalas i because they are cute like vere连词成句 they cute are because I want to the koalas see .连词成句 i kind like koalas of are interesting be cause they连词成句 koalas are 【cute and interesting.】对括号部分提问 【】【】koalas?