The product was so secretly researched and tested in corporate headquarters that consumers were unaware of its existence until it reached the stores and created a flurry of interest.
a. The product was so secretly researched and tested in corporate headquarters that
b so secretly was the product researche and tested in corporate headquarters that
c. researched and tested in corporate headquarters so secretly that
d. the research and testing of the product in corporate headquarters has been so secret that
e. a product was so secretly researched and tested in corporate headquarters as to make
a. The product was so secretly researched and tested in corporate headquarters that
b so secretly was the product researche and tested in corporate headquarters that
c. researched and tested in corporate headquarters so secretly that
d. the research and testing of the product in corporate headquarters has been so secret that
e. a product was so secretly researched and tested in corporate headquarters as to make












