More wild tigers have been seen in the forest around this area, ____ there used to be very few[ ]

The speaker raised his voice but still couldn’t make himself____[ ]

The education system rather than the teachers ________ for the overburden on the students. [ ]

— No, thanks. I’m just looking around. I’lllet you know if I want anything.

It is ________ that he has been addicted to the drugs and has difficulty quitting it[ ]