What are the two speakers mainly talking about？A．Recycling of used batteries.B．Environment

What are the speakers mainly discussing？A．An experiment in Antarctica.B．Part of the Larsen

What are speakers mainly discussing？A．The effect of the atmosphere on rainfall.B．How condi

What are the speakers mainly discussing？A．Getting financial aid for collegeB．Planning a st

What are the speakers mainly discussing？A．A chemistry assignment.B． A study that their che

What are the speakers mainly discussing？A．Causes of illness.B．The discovery of antibiotics

What are the speakers mainly discussing？A．Membership in a food co－op.B．The benefits of hea