Internet shopping will really        when people make sure that it is safe.

A．set up          B．set off       C．take off       D．take up

Internet shopping will really ________ when people make sure that it is safe．

1. A.
   set up
2. B.
   set off
3. C.
   take off
4. D.
   take up

Internet shopping will really        when people make sure that it is safe．

A．take off                  B．take up                   C．set off                    D．set up