[Maxful]

Hi, I have a question regarding "申し込む" which I do not understand. "申し込む" is consider as an intransitive verb if I am not wrong, so I can understand why number 1 and 2 used particle "に". But I cannot understand why number 3, 4 and 5 used particle "を"? Please kindly enlighten me.



1. 有料のクラスに申し込む

2. インターンシップに申し込む

3. オンラインでローンを申し込む

4. クレジットカードを申し込む

5. 住宅を申し込む