write the connector of cause

Kelas: SMA
Pelajaran: English
Kategori: connectors 
Pembahasan: 

There are several connectors of cause. They are as follows:
- because 
- as/ since/ for (the meaning and rule of its usage are same as because)
example: - I can't go now as/ since/ for I have been unwell.  
- because of / due to (followed by the noun/ gerund ect, but not a normal phrase. 
example: I can't go now due to feeling unwell.