A．They have dinner together.
B．The woman help the man listen to his talk.
C．The man help the woman listen to her talk.
D．They go to the library.

A．Projector.
B．Software.
C．Output equipment.
D．Slide.

A．The system invites learners to speak directly with speakers.
B．The system offers learners to do dictation.
C．The system invites learners to be involved in the conversation of native speakers.
D．The system can keep record.