5、hers.()4.Cocaineuserscaneasilysufferfromheartattacksandhaveagoodmind.()5.Takingdrugsisharmfulbecauseitgetstheuserinamoredangeroussituation.练习二I.单项选择从A、B、C、D四个选项中,选出可以填入空白处的最佳选项。1.Thechairlooksratherold,butinfactitisverycomfortableto______. A.sit B.siton C.