Don't ask me to prepare the picnic lunch,I'm afraid I'm not ____ a cook.A.much of B.better than C.good at D.much as 答案A为什么对,其它为什么不对

Don't ask me to prepare the picnic lunch,I'm afraid I'm not ____ a cook.A.much of B.better than C.good at D.much as 答案A为什么对,其它为什么不对
Don't ask me to prepare the picnic lunch,I'm afraid I'm not ____ a cook.
A.much of
B.better than
C.good at
D.much as
答案A为什么对,其它为什么不对

Don't ask me to prepare the picnic lunch,I'm afraid I'm not ____ a cook.A.much of B.better than C.good at D.much as 答案A为什么对,其它为什么不对
be of +名词是形容词的意思,it is of use=it is useful
A的意思是,我不擅长做饭
D没有这样用的
B没有比较
Cat后面加cooking

A