Marcia's hobby is keeping pets.She has had more than 20 _ them.怎么_英语解答

Marcia's hobby is keeping pets.She has had more than 20 _ them.怎么翻译,为什么添of

人气：105 ℃　时间：2020-03-29 16:50:10

解答

Marcia的爱好是养宠物,她已经养了超过20只了
them是代词,指代宠物,所以前面用of