Placebo - Ask For Answers Bass

Well, heres another half-tab. I'll have the rest done soon.
The only bit missing really is the line in the last part
of the song. Anyway, heres wot I've got. As I always say, 
correct me if wrong, improvise, and let me know how it
goes..

I think this part is a bass line. If not, it sounds good 
anyway so everyone's a winner.

Main Riff?
G----------------------------------------------------
D----------------------------------------------------
A--4-5--7-5-4-4h5h4----------------------------------
E-------------------5--------------------------------
 Bridge/Pre-verse?
G----------------------------------------------------
D----------------------------------------------------
A--------7-^-------------------------------------------
E--5-5-5------------------------------------------------