74. The _____ of disc players, which has been delayed by the customs authorit ies, will be arriving on Friday. (A)shipping (B)dispatch (C)deliver (D)consign ment 。

54. We appreciate your patience and please _____ that we will do everything i n our power to _____ that this type of error does not occur in the future. (A)assure....ensure (B)be assured....be ensured (C)assure.....be ensured (D)be a ssured....ensure 。