52. Who divide after duret into the river to save the little girl? (A) David Anderson (B) a passer-by (C) his girlfriend (D) a taxi driver.

58.According to the text, what is the major cause of the flooding spam? (A)Companies rely on e-mail for communications. (B)More people in the world communicate by e-mail. (C)Many computer viruses contain spam e-mail. (D)More advertisers begin to promote sales through spam.