--When do you have __________to help me with my English? I am reading the Encyclopaedia Britannica, but it is too difficult for me! 

--You can come to me ___________!

A．time; some time

B．times; sometime

C．time; anytime

D．times; anytime

废旧汽车的回收解体，涉及的服务工作主要有：（）

A、废旧汽车回收、兑现国家政策

B、废旧汽车拆卸、废旧零件分类、旧件重复利用

C、废弃物资移送

D、相关的保管物流服务