1 . ______ I agree with you, I don’t think your solution is the best.

A．If

B．Since

C．While

D．As

2 . ________in everyday life consumers have seen lots of successful examples of advertisements like Kodak, Nike, Coca-Cola, and McDonald’s, there are still some examples that do not reach the expected goal.

A．As

B．Because

C．In addition

D．While