Right now lots of people search for products on the Internet but still buy them at stores

问题补充：

Right now, lots of people search for products on the Internet but still buy them at stores. Internet shopping will really when people are sure that it is safe.

A. set up

B. set off

C. take off

D. take up

答案：

A. set up

B. set off

(答案→)C. take off

D. take up

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