用所给短语的恰当形式填入下列句子，使其意义完整。有两个短语多余。

belong to       in particular       compare with       turn down     in conflict with       in turn       be fond of

【小题1】The dogs serve to protect humans against pumas, which _______________ presents pumas from being hunted by humans.
【小题2】She can’t remember how many times she _______________ before getting her first job as a salesgirl.
【小题3】_______________ Susan’s English, yours is better, so you should be confident about yourself.
【小题4】My sister loves the song _______________, because my mother used to sing it to her.
【小题5】As is known to us, China is a country _______________ developing country.