— Could you help me do some cleaning after school?

— If I _______, I will do it.

A．am free

B．will be free

C．have had time

D．had time

平台禁售的毒品类信息包含以下哪些？（）

A.毒品，如摇头丸

B.吸毒工具

C.制作毒品的书籍

D.大麻生长灯