A: It's already 6:30. You must go now, mustn't you?

B: No, we _________. The school bus is coming. We must wait for it. [ ]

A. mustn't

B. needn't

C. shouldn't

D. oughtn't to

2000年3月15日，第九届全国人民代表大会第三次会议审议通过了《立法法》。该法共6章94条，分别对《立法法》的（）等作了规定。

A、立法程序

B、立法法的适用范围

C、立法基本原则

D、立法权限